I would use ebay with a "Buy It Now" price + Best Offer Option. That way you can scrutinize the price of each one. And prospective bidders will see all of the others you're offering... which could very well lead to selling multiples to many of the buyers.
Just don't price them too aggressively or be greedy... unless you want them to stagnate and sit there forever (like 90% of the stale merchandise on ebay).
Getting your desired price here on the BST would be near-impossible.
Going through an Auction House would be painful, as they will want to group them in lots together. And these things never sell for even close to full value that way.
So that pretty much leaves ebay.
