If you go high end, we have two Miele Excellas, which are state of the art. For a somewhat more moderate price point, we have two (and used to have a third) Bosch units. They are almost as quiet as the Mieles. They lack the ridiculous number of options with the Mieles (cheese cycle, anyone?) but have always done well by us. Both are "euro style" and rely on passive drying (no electrical heating element) which I love but some dislike. BTW: can we talk you out of the OTR MW? See this recent thread: Here is a link that might be useful: over the range microwave

But if this run has an end on it, do you need to specify just the end to be 1/2 inch (or greater?) deeper? If this run joins another run at 90 degrees (say east and north walls) then does the adacent run need to be modified because it lost a half inch? Or are these all things that can be accommodated at install?

Yes, definitely move the DW over and put a cabinet between it and the sink. I have 2 of the 15" wide dual Rev-a-Shelf garbage pull-outs (garbage, glass recycling, mixed recycling and returnables) and I find them plenty big enough for our needs. With just the 2 of you, I can't imagine that you'd need larger, especially because, when full, my bins are *heavy*. I don't know what the average age of residents in your 55 and older community is but in the one my folks lived in, the average age was 70. The people who bought my parents' home were in their 70s, fairly spry for their age but still, not able to do what they could when they were younger (true for all of us). Here are my trash pull-outs, 35 gal for the ones in the 1st pic, 28 gal for the ones in the 2nd pic: The trash pull-out in my sink cab is doable because I have a single bowl sink with an off-set drain. The garbage disposal is on the right side. Unless you eliminate the drawer above the trash pull-out, you'll only have room for 28 gal dual can pull-out in that space. However, if you have a clever contractor/carpenter/cab maker, they could use the drawer front to create a false panel for the taller dual pull-out. My DW, visible to the right in the 2nd pic, has a paneled front that is made that way.

I have had the Miele Lumen for 8 months. It cleans everything I have thrown at/in it. It is extremely quiet - my DH keeps trying to open the door mid cycle cause he doesn't notice the red light on top :-). It has the open door drying feature and everything is dry except lips on plastic rims and the bottoms of glassware that are concave. It dries my plastics - something my previous 12 1/2 year Kitchen Aid did not do well. I had a mid range Bosch for the last year+ in a rental and it cleaned and dried extremely well. No complaints there. The fit and finish of the Miele feels more sturdy, and I love how the racks adjust easily to accommodate large pots/pans. I am not shy to put my stainless cookware in the DW these days and have starting doing minimal rinsing. Baked on egg/cheese/etc does not phase it. The china cycle has washed many stems of non cut crystal successfully. The only items that it did not clean were items stacked where the water would not reach it. My bad.