"Couples Camper" advice..
Try questions more basic.
How many years will you keep the trailer?
How many nights aboard annually?
How many miles towing annually?
When each of these becomes a high number, the better to consider a TT that doesn't fall apart by 50k miles or less than ten years (which is is all the square box trailers).
My parents, grandparents and I all recognized that a TT would be a long term possession. An asset to low or controlled cost travel.
In those fifty years, nothing has changed the advantage of an aerodynamic, all-aluminum TT. My folks kept theirs 27-years. My grandparents travelled the whole of the US, Canada and Mexico. I'm restoring mine as I work toward retirement. Every dollar I spend would be reflected in an increased sale price.
One needn't buy new. A quarter century old and still better than what's mainly at the RV shows.
A seasoned RV dealer used to steer his customers towards boxes if "travel" was a day or so away, and consisted of a week or more at a location before returning home. Those who really would travel he'd point out the advantage of aircraft type construction. An indefinite lifespan is just part of it.
I'm 6'2" 200#. I've no challenges to height in my 35' Silver Streak. Nor lack of storage, etc. And on the flats average 15-mpg as to other one ton Dodge diesels pulling similar trailers.
One doesn't need a truck this size unless, like me, one is full time and carrying a garage worth of tools, etc. plenty of nice SUVs and sedans can do the job, better, as well
2004 2WD Dodge 305/555 CTD 6-speed
1990 35' Silver Streak Sterling