I am not a fan of Brake Buddy..
IF Remco Towing says you can tow it, with our without modification, then follow their instructions.
For the tow bar,, Ready Brute with Ready brake or Blue-Ox with Auto Stop are my suggestions... Both are good bars and take care of the brakes.
You will also need a tow light system... A diode kit is the most common.. Most Tow Bar places have those. HOWEVER if Remco says you need the LP-1 Lube pump... it is included.