RE: How much!?!!?!
I think the condition of it will have a big impact on its value. Find out how much everything costs new - not what you paid for it a year ago or the retail price, but what it costs now from somebody with fair prices. If everything is like new, ask for 66%, if it's scratched up, ask 50%. If you ask too much you'll never sell it, but I understand how it feels to be at a big loss.