I have a Roadmaster tow bar and Ready Brake/Ready Brute Elite surge brake system.
We have a shop that was recommended by several friends. I chose the Roadmaster and Ready Brake combo primarily because those were the combos the shop carried and had factory reps readily available to answer questions or address concerns.
RV Tow Bars - NSA RV Products
Does your RV dealer have tow equipment options available? Some do. Camping World at most locations has this option. Do some searching for trailer hitch companies.................that have been in business a long time and have a good reputation.
I am not familiar with Memphis offerings specifically.
https://www.youtube.com/watch?v=kUTFOUeER14 for a video for info on towing
Blue Ox is another reliable name in the industry.
Good luck, hope this helps,
Darrell