I know of 2 models of Jayco Jayflight SLX TT's that fit in well below your goal and are larger (roomier) than the BigFoot you mentioned. The Jayco SLX 185RB and the SLX 195RB models. Both are single axle and designed for pulling with a crossover SUV or a minivan with engine size from 3.0L to a 3.8L V6. Jayco is a family owned huge company located in Middlebury Indiana and been making RV's since 1968, gives a 2 year bumper to hitch warranty, and has a very good reputation. They have been #1 in travel trailer sales for the last 9 straight years.
The 195RB has a N/S front walk around queen bed w/privacy curtain, rear bath w/tub & shower, actual doored good size wardrobe, lots of storage cabinets, side dinette, fridge, microwave, 19.5' floor length, 8'7" exterior ht, interior ht of 73", unloaded wt of 2800, hitch wt of 280, cargo cap of 700 or 3500 lbs GVWR, 26 gal freshwater, 15 gal gray, 9 gal blk, 6 gal HW htr, patio awning, and a lot more.
The 185RB is 1' shorter and has an E/W queen bed and unloaded weight of 2610. The same as the 195RB otherwise.
Price is but a fraction of the Bigfoot price.
