One half of "having enough truck" is being able to pull the trailer long distances without the truck breaking down. The other half is being able to stop the trailer in short distances without losing control of your rig or your bowels. Actually I think the second half (stopping and stability) is more important. Brakes, hitch, stability, having enough weight in the tow vehicle that the trailer can't push it around easily are part of package too, not just engine/tranny, so make sure whatever you buy has all the parts.
"Test RVing" with a rented or borrowed rig is a great idea too. Good luck and enjoy retirement.
"Test RVing" with a rented or borrowed rig is a great idea too. Good luck and enjoy retirement.