I'm sure there was a for sale section
There is, this should answer your questions.
Trading rules for Sale/Swap/Wanted forum
Note: You need a minimum of 25 posts to access the Sales Section of the forum, once you reach 25 posts you will need to wait around half an hour for your permissions to be updated. Once you reach 25 posts it can take up to half an hour before you are placed into the right group...www.ukaps.org