I think this would be a great idea, the seperate swap meet section is harder to post in and not as easy to browse. I found this on a site that I manage, so I created a seperate catagory for Buy/Sell/Trade stuff in the forum, that way people can just post easily. Since then I'm seeing lots more interest in that area.
The only recommendation is to post the rules clearly (Not a problem here). Here's what I used.
Simple Guidlines:
Subject of post's should start with either:
WTB=Want To Buy
FS=For Sale
WTS=Want to Sell
Any other variant you come up with.
Please include the price you want to pay or sell for, where the item is located, and a way to contact you.
Items should be truck related for the most part.
MONGO