My 2013 Tundra with towing package was rated for a 9800lb TT and GCWR was 16,000lbs.
My TT was 7,000lbs on the road, and I would not have wanted to go much heavier than that. Power was definitely not an issue, but not having enough truck was.
No problems in decent weather, but when the wind started to blow, the shortcomings of my setup were evident. When tractor trailers passed, there was drama at times.
I suggest that if you are able to, take the trailer for a test run and do an honest assessment of how things go. You may find that even with the tons of HP that you have, your rig may not be stout enough to handle a travel trailer which will be in the 7500lb range on the road.
Good luck finding your RV.