Does the Median XL Developers have ever considered to implate a trading portal like path of diablo mod have? Its pretty good. Its currently closed until next ladder is starting so you cant check it but it looks like
You can find very fast any item you need by the search option and Seller/Buyer Name is linked to the ingame account and when the online status is green you know the seller/buyer is playing at this comment diablo so you can whisper him ingame. Its a good way to make fast trades. But I dont remember if you can click on the trade and make an offer or you only can contact the seller/buyer.
Maybe the Developers of Path of diablo shares the code.