Your problem is simple: people who do this have their own tools, have auction sites, have plans ion palce for years, all sorts of things. Basically, your pitch

Your problem is simple: people who do this have their own tools, have auction sites, have plans ion palce for years, all sorts of things. Basically, your pitching a spoon to dig a hole, when the problem is solved better by an Earth mover. Now, that isn't all bad, because noobies are better ad clickers anyway, but I doubt the tool would ever get much widespread usage (sorry!), and the effort to make it so is not going to be worth the return.