I'm looking at creating a paid membership site, the simple subscription add-on looks good for this, using PayPal. I don't think the client really needs all the options of the ecommerce add-on.

However they also want to provide an additional paid review service to members. Users would upload a document for review and pay for each file to be reviewed. I looked through the forum and saw a couple of posts about similar functionality but not really any resolution.

Itrio User Folders looked like a nice option for managing file uploading for users. I was imagining on a simplistic level I could simply put a PayPal button on the service application page, that after payment redirected them to a hidden upload page. And the client would need some notification that the payment/file was ready for review. I can imagine it might be useful to have an additional member group specifically for users who have requested the service, then I could probably hide the upload page from other members (don;t know if this is really required).

I have no experience at all with C5. Is there some way I could implement this as above with existing functionality and available addons? Or am I better off shopping for someone to program a specific add-on for it?