Welcome to the forum !!!
First, decide if you believe in the OEM ratings system, numbers, recommendations, etc...or not
If not, then do whatever and note that you assume the liabilities
If yes, then learn how that ratings system works, which includes 'recommendations'...that so many think does NOT matter. They do not understand that if you do not follow the OEM's recommendations...that OEM may no cover any warranty or liability
Those TV ratings you list are for the maximum conditions (weight) to the pavement when your TV is loaded. Including the trailer PIN/Tongue weight
The MTRW (max tow weight rating) of your TV by its OEM is derived from a 'curb' TV (stripper model) with only one option (tow option), one 150 lb driver and fluid tanks filled to whatever (some half full, others 1/4 full...to full) and one 150 lb driver. NOTHING else in/on the TV
Also, know that many confuse 'can' vs 'rated for'
Find your TV's GCWR (fairly new rating and many do not understand, nor believe in it) and do the simple math:
GCWR >= TV weight + Trailer weight + stuff
'Stuff' as in all the people, pets, cargo in/on the TV, WD Hitch system, options (factory and after market).
Best to load up your TV ready to tow and weigh it. That will then provide the actual weight for the above formula that will tell you what the actual MTWR is
Good luck !