Strangely enough, when you are on the road, 99% of the truck campers you see are not on DRW trucks, do not have 19.5" tires and are not stopping at every weigh station to freak out if they are 12,000 lbs. They all manage to get to and from their camp sites and all around the country.
That's exactly the way it is around here...
My last TC was a Lance 815(Squire version) on a 3/4 Ford (7200 gvrw) and the only mod was Helwig helper springs that were put on for a 35 ft fifth wheel...I drove about the same as my currant DRW with a 9.6 foot TC yet it came with air bags/sway bar etc..Not much difference in sway/roll between the two TC setups.
If I drove freeways I might consider tire upgrades if necessary but I don't do freeways and if I do,I don't go 70-75 mph...Never had a blowout with a TC but I always have good tires,a habit learned from owning Semi's...
I had a 1/2 ton'57 GMC with a extremely heavy 8ft Sturdi built TC and hauled two horse and gear on Idaho's roughest roads with 6 ply tires..Never an issue..Ever..
The internet has changed truck camping horribly!