I purchased a WordPress theme and need some features added to it. It currently has no multi user support. I am building a texture resource for 3d artists so I need to have the following features added:
1. User subscription membership to the site which grants the member full access to the downloads and no MB limit.
2. A download MB limit for non members/visitors.
3. PayPal integration.
4. Login and Sign Up css pop out so visitors can login if a member or sign up if they are not yet a member.