Welcome! You should be okay with either, but as the others have noted, take it easy and you should be fine. We're wrapping up a ~3000 mile trip with a Tundra and 29REKS and I couldn't be happier with the performance of the truck and trailer - I have 10200 tow capacity, and haven't pushed hard, but have maintained an average 60mph on the Interstates (plenty fast enough IMHO).
A little off topic, but we LOVE the TT! Once the slides are out the living space is plenty big enough for the two of us and a small dog. We met up with friends that have a 38' class A, and our living space was comparable. The only drawback is the bedroom as it's a tight fit, but all we're using it for is sleep so not a big deal.
Rob & Kelly, Bella & Brady (Miniature Schnauzers)
2016 Eagle 323LKTS
2016 Ram 2500 6.7L CTD
2015 White Hawk 29REKS Summit Edition (Traded)