It does not include the payment gateway, it is very expensive and simple but it works very well. Before it was cheaper, too bad they went up in price.
There is a better one from ArtMedia that includes more listings and payment gateway.
https://developers.oxwall.com/store/item/1611
It is even more expensive but it is worth it, it is much more elaborate. I don't know if it imports the data from this plugin, I think ArtMedia should say so, if I find out I'll edit this review