Membership Site - Integrate Multiple User Logins Into One

I'm looking for a php/mysql/ajax programmer to make multiple user logins work seamlessly together. I have a membership site using the Classipress wordpress theme, Vanilla forum plugin, and Wishlist Member plugin for the paid membership access. Right now new users have to login 3 times and there are multiple places to login and create a user profile. I want to merge the membership site and forum into one seamless login experience with minimal bugs. Here's basically what I'm looking to have done... - Integrate the multiple logins into one. - Allow new members to create their user account on checkout page. - Eliminate the ability for users to access the wordpress dashboard - Would like the ability to allow users to save posts. This function is already built into Classipress but I want to add this feature for members. Project Budget: $250