Just out of curiosity, what other hard sided travel trailers have you found that will fit in your garage besides a TM?
You also mention that the TM is heavier. I just thought of one, the little A frame hard side pop ups - chalet or something like that. If possible see if you can spend a night in each of your finalist at the dealers. You would be surprised how much your opinion of what is Okay can change after a few hours in one.
Bill