It's been my experience pulling various trailers from TT's to utility, that once you get past ~5000# total weight, light trucks just aren't up to the task.
With half tons, you have smaller brakes, lighter springs, lesser frame sections/thicknesses, transmission, rear end and LT tires versus a Heavy Duty 3/4 (not the standard 3/4). A dually one ton is far and away better than a half ton and most HD 3/4 tons for any kind of serious, long distance towing. If a dually isn't for you, SRW one tons are available.
OTH, If you just run a few hours on state highways now and then to the lake with a modest TT or even a small 5er, you can get by with a half ton truck, properly equipped. But don't expect to spend a lot of time on the interstate. You'll get bit.
I've seen lots of accidents waiting to happen on the interstates with half ton or light duty 3/4 ton trucks pulling BIG 5ers. Typically going slower than traffic and obviously overloaded. Eventually a serous inconvenience WILL be encountered and likely end up in injury or even death of the occupants and likely other innocent drivers.
The sales folks will tell you it can be done. They are right, it can be done. But is it a good idea? NO, absolutely not.
Make sure you've got ample truck for the task. Cutting corners will get you and somebody else hurt or at the very least, you'll wear out or break the light duty stuff prematurely.
Example, a friend of mine ruined a 91 half ton suburban (700R4 trans w/cooler and the 8.6 rearend) by pulling a 26ft TT just across Missouri on I44. He had no real power (350 CID and 3.73 gears, 31x10.50-15 tires) going up hills (floored in 3rd got him about 50mph uphill) and simply cooked the trans and rear end. :'( I know, cause I'm the guy that fixed it.
Just not enough truck for the job. Sure 4.10 gears would help, but you're still stuck with small brakes, lesser frame, lesser tires, lesser driveline. You get the idea.
Get the RIGHT equipment for the job.