Rv Newbie...Need Help With Tow Truck!!

You are getting the best advice. Based on the dry weight of the TT you need a 3/4 truck for safety if for no other.

Here's an example of what I think is the "most for the least" tow rig.
Ram 2500 Tradesman, 6.4L Hemi. A dressed up work truck ready to tow. This example is a new leftover 2017, Bay City, Michigan. Check out the window sticker:
2017 Ram 2500

Listed at $ 39K, I imagine one could do better on price.
Ram 2500 Tradesman 4WD Thelen

Next best would be an F-250 XL 6.2L, with the STX and chrome packages, a touch more in price, but both very well suited to your job, and often below the 1/2 ton price.

Edit: well by "next best" I meant list price, If all things were equal I'd lean toward the Ford, with the 2017 redesign, that's tough coming from a lifelong Mopar gearhead...

A 2500 series, or 3/4 ton, will be much better suited for that weight. They have a stronger frame, bigger brakes, heavier duty springs, more powerful engine, stouter transmission, larger drive shaft joints, etc. etc. Just a lot more truck for the money.
As for $70,000, holly cow, who's spending that? In 2015 my new work truck was a Chevy 3500 with 4 doors and 4wd. It was about $35,000 I think.

Ranger Smith wrote:

donn0128 wrote:

Ranger Smith wrote:

3/4 tons have better brakes and sometimes it is not about pulling it but stopping it. The generally also have an engine brake on them where the 1500's don't

HUH? Never ever seen a gas motor with an engine brake? Is this something new?

Mine in tow mode was a transmision brake which adjusted the downshifting when braking.It was a Chevy 2500 hd

And so does my F150. If I set the cruise it does it automatically. Without the cruise it takes a tap of the brake to downshift.

donn0128 wrote:

Ranger Smith wrote:

3/4 tons have better brakes and sometimes it is not about pulling it but stopping it. The generally also have an engine brake on them where the 1500's don't

HUH? Never ever seen a gas motor with an engine brake? Is this something new?

Mine in tow mode was a transmision brake which adjusted the downshifting when braking.It was a Chevy 2500 hd

Half ton truck will pull your TT. Won’t stop it very well. Won’t be stable in winds. Won’t be level when hitched.

Ranger Smith wrote:

3/4 tons have better brakes and sometimes it is not about pulling it but stopping it. The generally also have an engine brake on them where the 1500's don't

HUH? Never ever seen a gas motor with an engine brake? Is this something new?

Any of the 2500/250 series of trucks will work just fine. Get a gas motor unless you are towing a LOT. Then a diesel might be a better bargain. While a 1500 might work, you likely would be disappointed with end results. There is jo need to spend 70K for a new one. Either find a gently used or if shopping new, look for lower line trucks. For instance a New Ran Tradesman with a gas motor you should be able to find for well under 50K. Dennis Dillon near Boise,ID usually sells for far lower than other dealers. And they have a fly/drive deals. Turn it into a mini vacation.

I would not get anything less than a 3/4 ton. I had a 34' Keystone and my Chevy 2500HD 6.0 gas pulled it fine. It will need a weight distribution hitch for it.
3/4 tons have better brakes and sometimes it is not about pulling it but stopping it. The generally also have an engine brake on them where the 1500's don't

You will be much happier with a 3/4 ton truck.