I think this is a fine idea, I just need to do some research on the best way to set it up. Buying and selling equipment online is something you do at your own liability, and we'd want to try and protect as many of our members as possible. Barring extenuating circumstances, I'll get the subforum created within the next 2-3 weeks. If we can get something more customizable for actually buying and selling stuff through the forum, I'll update the subforum to match.