Sorry, but that would violate the rules. If you have something you want to sell, you need a vendor account. You cannot just trade your product for someone else's product. The only way to buy here is with bitcoin - not with cash, not with Moneygram, not with Western Union, not with bank transfer, not with MP code. So when you see people talking about a "trade" - it's safe to assume they are referring to purchasing something with bitcoins from a vendor.