We're almost twins. We have a 2014 16' Scamp
(Layout 4) and use a 2011 Rav4 V6 (same color) as a tow vehicle. I hope you like yours as much as we like ours.
One suggestion. The Rav4 sagged in the rear so I installed Firestone air bags in the coil springs. I pump them up to 30 lbs whenever I tow and they keep everything level - work great. They're a bit of a pain to install but worth it. I ended up using a hydraulic jack to push them thru the coil springs. I'd thought about using a weight
distribution hitch setup but I saw a thread on Fiberglass RV about the air bags. Best way to go.
Our Rav4 has the factory receiver. It is mounted with about 30 bolts, so it is very solidly attached to the vehicle. However, for some reason, it sits way under the rear end. I need a long ball mount to make it work. I have no idea why Toyota did that but that's how it is. Does yours have the factory receiver?