Always use buy it now with too high a price (but not too high to scare off legitimate buyers) and make an offer. Then you scrutinize the buyer best you can. Check feedback of course, how long on eBay, primarily buyer or seller, anything else you can think of. I like long time on eBay and primary seller. They rely on trusting buyers and normally treat their sellers the same way. Others too but check them out. If they are sellers google them see if they have a store. Or just sell to a dealer problem solved. NEN has always been fair with me. They need to make money but offers have never been insulting.