Most everything's been said, but I'll my .2 worth.
Not to be blunt but it's reality check time.
Bigger truck or a much smaller trailer.
That TT will be north of 9600 lbs loaded up. @37' long there's no way that any 1/2 ton will be able to handle that TT unless conditions are perfect.
I've towed 9500 lbs with a Ram 2500 and a 3500. Both CC LB. No way on earth would I ever think about towing my TT with a 1/2 ton.
The 1st time a semi comes up beside you and takes 3-4 minutes to get by, you'll be pulling over at the next off ramp to change your underwear.
Here's one on a lot in CA. 8598 lb UVW. Thats with no batteries or propane.
https://www.trailerhitchrv.com/product/new-2021-grand-design-imagine-3250bh-1323219-29