BRIDGESTONE m700 Duravis would be the king of the hill. Commercial traction tire. What will be on the back of my 2WD soon-to-be one ton truck with the r500 up front. I see no reason to buy less than the best on a tow vehicle. For me that will be the above or the current MICHELIN (LTX M/S). And the latter is a tire I see over 100k on. The m700 & r500 is capable of 180k miles.
I've driven 1T's in oilfield hotshot service. Grossing above 30k pounds. Tires don't last as long as the above. But the Drive Axle "cheap" tire I'd consider if no others were available would be the Cooper A/T3 (the local ranchers love 'em, they stand up to the caliche/rock roads) or Firestone Transforce.
I would
not run a traction tire on the front axle. Pickup truck steerig is already bad enough. I would be sure I had the Posi-Trac or better in the rear axle. I don't take my TT offroad (unpaved is not what I mean). You may. I'd rather use a few boards to get me off the grass than run 4WD or otherwise a poor choice of tires.
As you say you are still looking around, learning, take your time before committing. Keep reading. Send PM's with questions.
An RV'er I admire is a fellow with the screen name of
NCHauler who lives out your way. Posts on WOODALLS, as does the man in the link below,
Jimnlin. Both those guys drive my brand, the latter also a 2WD. Be sure to indicate your truck brand, spec (2WD) and ask away. A tread pattern in your neck of the woods might be different "best" than out here in the gumbo or caliche.
The tires I'd consider for the TT would be those recommended by
Jimnlin who made a living hauling for 30-years with 1T trucks.
Woodalls Open Roads Forum: Travel Trailers: LT tires on TT
He's put the r250 Duravis on his 5'er as I plan to do with my TT. One cannot go wrong with this brand. It has also stood up on my 367 Pete at work in the oilfield as well, I've not been stuck but once (slid off a road).
BRIDGESTONE at all eight positions (if your TT is heavy enough to benefit) and you need never look back. Find the best dealer in your area. Make sure you can drive your combined rig in and out of his retail location and that maybe is shop also does brakes/bearings,
trailer alignments etc. Such as a big truck service dealer. The place the haulers, ranchers and farmers go to. Cheap doesn't mean a damn,
service does. Your combined rig will represent a lot of money. Find the best men to help you keep it in shape.
FWIW, I only got 78,000 out of the last Michelins. They just about gave me the tires above (had 4 to 5 thousandths of wear 50/50 highway/city . . . some of us drive so as to achieve this); it was understood that internal tire failure was the cause. The first set still had more than 4/32's tread at 120k.
Throw some BILSTEIN or, better, KONI FSD shock absorbers (see HENDERSONS LINEUP) while you're under there. And CENTRAMATIC Balancers on both TV & TT. New poly anti-roll bar bushings. Zero brake drag and alignment verified dead-on for your truck. Zero steering slop. Keep on the look for that shop that can do those things for you.
Good luck
Ross
.
460 watts solar, lithium 230 AH, 16" LT's, pulled by: 
completely worn out at 30,000km, I actually got the truck stuck in the snow in my driveway in 4Low with the Generals. The road noise was so bad you couldn't listen to the radio on the highway.
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