Hello Polly, welcome to the Practical Caravan forum
Sorry I can't help with information about the Honda, you may receive more information if you ask on the General message board.
Click Here to go to the Caravan Buyers Guide, this contains lots of useful information on how to go about buying a good used caravan and avoiding expensive pitfalls.
The best starting point would be to find the towing weight of your vehicle and then look for a caravan that you can safely and legally tow. If there's anything that you're not sure about, just ask and we'll be glad to help