I full time in a 32 foot travel trailer with two slideouts with one other person with whom I do not have an intimate relationship with and my dog. My trailer has two distinct sleeping areas.
Getting into National Parks, BLM and NFS lands was also a high priority for me.
I see many many folks out here full timing in smaller rigs of all types.And most seem very happy with their choice. In fact I run into many many more folks who say they want to DOWNSIZE rather than the opposite.
I do think however that a 5th wheel wastes a lot of space as compared to a similar length TT. and you lose the vast majority of your P/U bed storage space which can be very handy for sure.
If it was me I would give serious consideration of a Regular TT. and Get a Canopy for the TV.