Since you're going to be painting the cabinets, you might think about just replacing all the doors. Get the ones in the style you want with glass, then the rest to match with solid center panels. You could then pick a style that will have the proper edge configuration for handles. A local cabinet maker should be able to do this for you. Or check around online. There are several companies that only make cabinet doors. My BIL built his own cabinets, but bought the doors. It may or may not be within your budget, but doesn't hurt to ask and check out what's available. We're in the middle of doing this now. We had the cabinet frames stripped down and bought new doors. They should be finished next week. We decided not to have any glass doors, but they were available from the door company if we wanted to have them. Since you're painting your cabinets, you don't have to worry about the finish matching.

My guess is that it would be reasonably easy to replace the real door with a glass one, but not the dummy doors. They are probably integral to the structure of the piece. Unless you are a woodworker, you will have to get someone to make a new door and possibly install it. If it's a cheap piece it may not be worth the cost.

Try a local full-service glass store. Most will have a large number of options on display. The ones in our area have excellent selections as well as great service and advice not available in the big boxes.

For heavens sake. Just shorten the cabinets over the sink, and make them ALL glass doors No solid doors) on that sink side. Uppers are only good for glasses and dishes anyway. Be neat. You don't need to recess them, just shorten over the sink. Yes it's done all the time. Nobody has gone to ER for the concussion that has not happened. If they are all same glass front? You won't be counting the inches in width left, right center whatever. Or............... use a 33 inch sink base, 18 inch Bosch DW, and have 9 inches to your symmetry issue added left db and upper cabinet. And I'd still do all glass doors, and shorten those over the 33 sink base. The 6 inch loss of DW sizing ? No big deal. Most folks hardly notice. Hand wash the bulky pans. And a 33 inch sink base will take a very decent single bowl sink.