Only had a TM for a few months but looking into many of these already:
1. The refrigerator does not cool well for many customers. A compressor based fridge has been recommended on the TM forums. Test a new refrigerator.
GA fridges are very inefficient. A modern 12v/120v can run at 30-40W instead of 180 and have more space inside. Unless you need the propane capability, it makes sense to go to a compressor.
2, Hydraulic or electric lifting for the standard TMs. TM forums do not think it will be hard to do and can be light and inexpensive. Solving this challenge could create very interesting growth and value for TM.
Key here is that people generally only need help raising, not folding. Help raising can be done purely mechanical - no hydraulics or electic morors at all. Once you start thinking that way all sorts of things are possible. Front is easy, rear a little harder to create the right pivot point. Need to get some 1/2" aluminum tubing.
3. Factory installed surge protector to protect electronics from badly wired campgrounds.
http://www.campingworld.com/shopping...r-30-amp/56423
4. On demand hot water heater. Winnebago now has them standard on several of their product lines with no issues that I could find. (They use Girard with an adjustable thermostat). In talking with Atwood, they recommended adding a Shurflow pre-pressurized accumulator tank.
No opinion but common in Europe.
5. Black water tank solution. Need to come up with someway to have a vent pipe that will meet RVIA requirements. (Should be easy in the RISE). For the RISE, consider using flexible hose like what is used for cleaning swimming pools or how the swimming pool industry uses telescoping poles that can be tightened in place (here would stop smells).
Not RVIA issue but ANSI A119.5 chapter 4 section 8.3.4. Major requirement is 1 1/2" (38mm) diameter or equivalent surface area if not round extending through roof.
Suspect the easy way would be to have two ducts parallel to each other, one for when the roof is folded and another for when it is open. with a horizonal component so only need ont roof termination.
7. You told me you are thinking about adding as much as 4-100 watt solar panels. If you do that, you should consider being able to have 4 6 volt batteries to take advantage of that capability. Thinking through where they should go, the electronics for monitoring them should be part of a study or feedback from these forums.
200W/hr for 8 hours should recharge almost anything. One issue with 4 GC2s would be 250 lbs. I have one Grp 29 (12v 125 AH). By having the one and turning it sideways in the rear comparment I still have room for the 2500W genny)