I looked at the Sportsman you mentioned and, with the weight
of a quad and any stuff you will be pushing the TV's limit, never a good idea. In fact, with 500+ lbs in the back of that trailer, you might have the tail wagging the dog unless you put a lot more weight
in front and get up to about 250 lbs tongue weight
We have had several smaller trailers, and feel that the bath/shower is over rated for a 13' coach. You have 25%+ of your free space used up for the loo that is used 5% of the time. We sold a 13' Scamp
with bath and bought a 13' Bigfoot
w/o bath for that very reason. But some find the trade off acceptable, but if you can try before you buy, by all means do so.