Ha, I've got an F150 with #11,000 tow rating and only tow a #5,000 GVWR TT with it... I'd go to around #7500 GVWR on the trailer if I wanted a new trailer with this truck, but for me, I just don't like the new trailers out there for the price they want for them compared to what I have with my 2003 trailer..
It was the first trailer I bought brand new and I still get offers from total strangers to buy it from me! I just tell them, thank you, but not for sale...
Anyway, Good luck with it all.. I have looked at new travel trailers for the last 10 years or so and I always just walk away thinking "what a pos"....
Mitch