Which way did you decied to go with this?

I think I have reviewed every Pay-Per-node module and every Upgrade Role via paypal.

I'm working on a very simple classifieds.

I can go either way, node or role. but which ever way I go, I'll need to autoexpire either the node or the role with advanced email notification.

It appears there are several modules that can handle the node expire and email.

you have a deeper understanding, which path looks best for this with UC - role or node

thanks