If I were you I would avoid Amibay at all costs. They are not in the amiga spirit and you better be prepared for whatever you buy on there they will dictate to you what you can and cant do with it, to who and if you sell it , and where u sell it. Its incredible. Incredibly ridiculous.
There rules are rubbish, no one follows them anyways and there are mostley traiders there..
Signing up for amiga.org was not easy either, the signup process is worse than getting a mortgage.. after registration it took about a week to be verified.