Swapping is not supposed to be posted in the discussion threads per the rules of conduct (see excerpt below) but if you think this might be an exception, I suggest you message Stuigi who moderates the Marketplace, and ask. (See the main Forum page; moderators' names are in red under the forums they oversee. Click on the name.)
3.5 For Sale / Swap posts are not permitted in the Discussion boards
Posts of this type may only be placed in the Basenotes Marketplace. There are certain restricitions as to who can post on these boards which can be read here.