Why do you want to sell it in two places? Do you have two MBPs?
You could put a link to the eBay auction in your signature, if that is allowed, maybe have a look at the RULES and FAQ.
Yeah I understand. I just always thought it was fairly easy to go to the FAQ rather than start a thread. Then again, I was once tasked with reading the rules in order to return to the playground. 😀😀