Since you are still in the think phase, I have a couple of recommendations based on my experience doing what you are planning.
First be careful about overbuying and getting an oversized TC. Sure the space looks great but instead think about what you really need. I highly advise against slides! You will pay a lot in weight for very little actual useable space. If you do get slides make sure you can use the RV with the slides in. That would include stopping on the road to use the facilities, or prepare lunch or take a nap. That would include full use of the RV if you are parked in an area such as a side street where you cannot open the slides or you want to be stealthy.
Get a TC with at least enough space for 2 large AGM batteries (about 300 AH total) and a couple of full sized solar panels. Oversize your batteries and solar to accommodate camping in the shade and cloudy days so that you can avoid running a generator.
Don't waste space on a dry bath. My wet bath is easy to dry with a squeegee and saves lots of space and weight.
Get a TC with a cassette toilet so you can camp without the need to visit dump stations. A cassette can be dumped in a primitive vault toilet at a dump or even using a flush toilet. In an emergency you can even dig a cat hole depending on your location.