Would you be willing to split that ram? i'd like two sticks. or maybe the case. are you willing to split? I honestly think you'll have better chances auctioning off the stuff separately. i'm even interested in the power supply, honestly.
Although that's true, you'll have better chances of making money that way. From what I've seen, people don't normally jump on these types of offers because they're building their own system and they're coming along looking for one part. You could probably sell off all of the stuff on that rig with ease if you split it up, because it's all nice stuff.
You can get around most of that. Make the buyer pay shipping (always a good idea), and use amazon payments, which does not charge either party fees. Ebay, that is fee land no matter what.