Wordpress Developer Wanted

Please note that we have a budget of $100 MAXIMUM to spend on this project. We need a Wordpress Developer that is familiar with Wish List Member Wordpress plugin ([login to view URL]). We are using Wish List Member plugin on our main music website but we have 4 other websites where we want to install Wish List Member Registration pages. Two of the 4 sites are wordpress sites. The 3rd site is a html site and the html storefront will be in a sub folder but we have installed wordpress on the domain + we want to install wordpress for login page i.e. so we can install Wish List Member plugin. The last site the storefront is Joomla which we will install in sub-folder, but once again we have installed wordpress on index page + once again we want to install wordpress for login page i.e. to install Wish List Member plugin. When a person enters their username and password on the Wish List Member registration pages of the 4 partner sites we need Wish List Member to check database of our main music site and if it finds the user details of the person then we want Wish List Member to redirect user to storefront pages of the 4 partner sites. At the moment Wish List Member is not capable of using one login across multiple sites. So we need someone that can custom code this for us. If you know of any other way around this problem (i.e. use one login across multiple sites) then please let us know and when you send us a PM please explain how you would get around this problem. Once again; we are using Wish List Member to manage membership subscriptions on our main music website. Once again, we have a budget of $100 MAXIMUM to spend on this project. Please leave PM if interested.