I don't know if option 4 would work for you: a single oven range and a single wall oven tucked in a spot that frees up counter space near the range. I'm really happy with the range/wall oven combination. I do some stovetop to oven cooking, so like the oven just below, but for baking and when I need a second oven, the wall oven has been a terrific addition to my kitchen. Sounds like you have a lot of good options, so good luck choosing the right one for you!

My opinions on:

1. I had a single wall oven that opened up into the walkway between the kitchen and dining room. Hated that setup. Really felt cramped getting into the oven and blocking the walkway.
2. Now I have a double oven range where my cooktop was. The lower oven is just as large as a regular oven, the top oven is small, one rack. The only thing missing is a storage drawer, which I don't miss since I didn't have one before. I opted for an electric range and it is vented outside so I cant address that issue for you. But I love this oven. I now have an extra stretch of counter where my wall oven was and that is where the toaster, and maybe the electic kettle will live. Still not fully finished so we haven't make final decisions.
One thing to consider is with a double oven range you will be bending down more than you may be used to. I don't have a problem with this, but other do so you should think about that.

I've got the double oven range and I don't do a lot of cooking but I do almost all of it in the small upper oven. I even bake my gluten free cookies and brownies in it! I am impressed at how fast it heats up and well it cooks.

Valid point by rocketmomkd, the lower oven is way down there!

I have a double wall oven and an induction cooktop. I highly recommend induction for a small kitchen, because the ceran cooktop functions as counter space as long as you use it gently. I set things on it all the time while I'm prepping, even while I'm cooking on one or two of the hobs. I also set mail on it, anything, really. I just don't throw things at it or drop things on it or drag rough things across the surface.

Since my kitchen is next to the garage, my double wall oven is actually built into the wall, not into cabs. It sticks into the garage. You could also do this if you had a closet on the other side of a kitchen wall. Could something like this be an option for you?

Where is your microwave going to be? Some people use space more efficiently by getting a speed oven that doubles as both a MW and a second oven.

4amblues, I did consider option 4, thanks, but eliminated it because my space is SO limited, I was trying to keep things grouped together. The range would also have to be positioned near the dishwasher, and I'm not as crazy about that idea as I'd like to keep a more unbroken line of cabinetry there. It is a good thought though, that I actually have a design drawn up for.

Rocketmomkd, thanks for the input. I know the walkway is a less convenient spot for it; not at all idea. So hard without knocking down walls and claiming other space that folks are actively using, to make this all work in a tiny spot. I'm glad to hear how well you like the double range - I was concerned about how much the upper oven can hold. I also wonder how hot it gets, compared to cooking on a cooktop while your double ovens bake away at a distance. Hags00, thanks for chiming in on that too; I have wondered about the lower oven issue and what it's like to get a turkey or large dish out of there so low down! It still sounds like a viable option and I'm glad to hear it works well for both of you.

Ginny20, I haven't even looked at conduction cooktops, I'll have a look. I wish I had a space to claim in the garage, what a great idea to set the ovens in like that! I'll spend a little time thinking on that one...

Microwave: with plan 1, would go to the right of cooktop, undercounter. Plan 2, would go undercounter in the spot I've considered for the double wall ovens, if they don't go there. Plan 3, under counter as well in that other spot. It was suggested to me that I get a combination microwave conduction oven, but it's not uncommon to have the micro, both ovens and cooktops going here, so I think I will use them all.
Thank you for the input!

Another question: I can't vent to the outside with the way my kitchen is situated. Is it dangerous to cook with gas without outside ventilation? Would this steer me toward electric wall ovens and gas cooktop rather than gas range?

In my old kitchen, unbeknownst to us, the duct from the hood went around the ceiling of the kitchen in the soffits. When we removed the soffits to make room for the new cabs, surprise! Usually they just run through the ceiling between the joists, but my joists ran the wrong way. My GC put the duct into the wall, down into the basement, across the ceiling of the basement, then out of the house. He would have gone through the kitchen ceiling to the garage and then outside, but there was a chimney in the way in the garage. My point is, are you sure there is no way to vent to the outside? My set up is far from ideal - that many turns and length of duct decrease the effective cfm - but it's better than no outside venting. Maybe someone creative can come up with something for you.