Looks like I need to advertise my M1 Carbine to a wider audience. I’m thinking about posting it on CMP or Gun Broker. I think I know how to ship it, UPS and ship to FFL. What I don't know is how to accept payment. Do I need to request a personal check and wait for it clear or bank draft, postal money order, etc? How does the buyer know to trust me or how do I trust the buyer? Thanks for the help.