Open Question: I want to rent our camping tent out- need help with a deposit?

I have a very nice 10 person Eddie Bauer tent. We are looking for some extra income- and since we only use it 1 or 2 weeks out of the year, I thought renting it out might be a nice option. Most places I've found that rent, only rent 1 or 2 person tents. Average price seems to be $10-$20 a night with a $50 deposit.

My question is how much should I rent it out for? (I'm thinking $20 or so a night) but what about the deposit? The tent was $200 new when we bought it- and we've only camped with it twice- so it's still in like new condition. I just want to make sure and cover out butts in case someone completely trashes it- but I don't want to make the deposit so high that nobody rents it either. (most rv's have a deposit around $300-$400 for a week). Suggestions? What else should I do to cover our butts in case someone wrecks it?
(1) I am not going to sell it
(2) Why not rent it out? You can rent rv's- and not everyone can afford to rent an rv and lots of people don't have a tent- and don't camp enough to shell out the cash for a new tent.

Source:
http://answers.yahoo.com/question/index?qid=20110803114408AAWIOfQ

resort parks international national parks map travel trailer rentals pa state parks camping hours