Welcome from one Jonathan to another!
Excellent advice from Lora.
There are some recent threads about setting up a V70 for towing. A Google site search should turn up some good information (blue bar under log-in information, "Search," and scroll down to "Site search/ Google").
We camp with four people in a 13' Scamp
with front bunks. It's cozy, but comfortable. We cook and eat outside most of the time.