web enabled vendor system

Im looking for a system to purchase that is similar to slexchange. I would like for visitors to browse a my shopping portal, select, purchase, and have it delivered inworld. Does anyone know of such a sytem for sale? or any one interested in scripting one?

I'm working on such a system, albeit very slowly.

It would have a web back-end to manage multiple stores in multiple locations, but handle a central set of items that could be assigned to different store locations, with different prices ate each, but be managed from a central website.

Hadn't really considered a web front-end to sell stuff off the Internet, but I assume that wouldn't be too difficult to add to it, provided there was a good framework for the shopping experience.

Sale items would be delivered to the buyer from central location, and even include delivery of gifts for other avs, and maybe even gift wrapping...

I'm early in the design phase, and don't really have any sort of deadline, since I don't have anything to sell. But if there is interest, and there are other scripters that might be able to lend a hand, it might light a fire under me...