We have two possible times in mind:
A) Right after the Lolita 202 panel, as sort of a tag-along
B) Approximately an hour after the end of the Friday tea party, in order to give sellers time to retrieve their items from their hotels if they didn't bring it to the tea party
And three possible locations:
B) Couches in front of Video Room 2
C) Tables and chairs in the room where everybody registers, though this is less of an option on friday I think
Please comment with interest OR disinterest!
EDIT: Since selling outside the Dealer's Room is prohibited, the swap will be restricted to trading and to pickup of online sales. Also permissible (I think, please correct me if I'm wrong, anybody) is negotiating prices indoors and exchanging money outside of the BCC. The Skywalk provides easy access to an air-conditioned mall-thing for exchanges, for example.