Can this plugin be used with Marketpress?

Can I use the membership pro plugin to setup a site that allows users to signup for a membership and then allows them to have an account that includes:

-An online store with a certain number of products
-Access to post a listing (using the listings plugin)

I realize this may need some custom programming, but we are just wondering if you think this would even be possible, or if we would be better off just coding from scratch?

Thanks!