Every one was a noob at some point in time, People will in time start to trust you just as they did me. When I put up my first couple for sale threads I'm sure people were worried that I would be Noob scammer, Just don't lie on your thread and if someone who has a lot of references and is a long time member askes you to ship first DO IT. 90 percent of the buisness that go's through the classifieds is bought and sold by the same 10 percent of members. The main rules are ship first, don't lie, and keep good communication, soon enough you will be the person who people ship first to.