The newer 1/2 tons are better for towing than older ones, but they still fall short in payload capacity as compared to 3/4 ton models. It's the limited payload of 1/2 tons that can get folks in trouble because they don't realize all the variables that contribute to it. That's why I recommended that you go to a CAT scale under loaded TV/TT conditions to confirm your weights.
I'm sure the "no-ways" on the 1/2 ton come from folks based on their loading and travel habits. It just becomes more important to understand the weight you are adding to a 1/2 ton because it's limits are less for-giving than if you went with a 3/4 ton under the same circumstances.
I'll add a couple of more comments based on your added information, and also echoing what others have offered:
* Tires; Consider a LT rated tire, 10 ply tread, 6 ply sidewall.
* Adding air bags will not increase TT tongue weight allowances.
* The ProPride WDH hardware added to the TT A-frame will add about 75lbs.
to your TT loaded tongue weight. The remaining hardware is added to the
* To best confirm how much true payload your TV has, take it to a CAT
scale and weight it under loaded conditions (passengers, cargo, full fuel,
etc.), subtract this weight from the TV's GVWR. This will give you a
snapshot of what you have to work with (for tongue weight, WDH, etc.).
Only a TV/TT CAT scale weigh-in process will confirm where your axle
* To minimize the potential for going over your TV's weight limits, tow
without any fluids in the TT tanks.
* With a 34ft. long TT, you will want your loaded TT tongue weight at 13%
to 15% of the loaded TT weight. So a 8,000lb TT weight (including the
ProPride WDH), would put the desired loaded tongue weight at 1,040lbs to
1,200lbs. This is where 1/2 tons can get in trouble with the heavier TT
weights, they run out of payload capacity to carry the tongue weights.
Keep in mind you stated that your TV only has a 1,620lb payload
capacity (based on your TV's base curb weight).
As I mentioned in my first post, "IMO your 1/2 ton TV will tow the TT assuming that you keep your all your "loaded" weights within your TV, TV receiver, and TT specified weight limits".
The better understanding you have about "loaded" TV/TT weights and there respective limits, the safer your travels will be.