"Headin' Down the Hiway; Lookin' For Adventure..."
I would figure on trailer weight adding another 2000 to 2500 #. Your gross trailer weight might still be under 10K #.
A Ford F250 Superduty diesel, or equivalent, should do the honors...
Trailer will have two or three axels, with electric brakes. Keel support very low, and bunks or 2 or 3 pads per side for bilge support.
Be sure you pad every little thing that is inside *or* on deck -- a fraction of an inch of movement against gelcoat or metal will multiply over the minutes and miles to cause a *lot* of chafe. Padding and more padding...
When we used to trailer a 20 foot sailboat all the time, we had so many bungee cords around the rigging and spar that it looked like it had been attacked by an army of garter snakes! Looked funny -- worked great.
Best,
Loren in Portland, OR