Community Builder and Profile Multisites Connector

Hi, we are looking for an extension/component/fix/patch similar to the multi sites extensions on the market but better. (joomla/php/mysql knowledge is also essential in this project) we Have: 1) we have dozens of sites in sub-directories ([login to view URL], [login to view URL], etc) 2) The main domain ([login to view URL]) is a splash page and we would like to keep it that way. 3) we use Community Builder with nearly every plugin possible for my user system. 4)we are running on an Apache Server we Need: 1) The ability to connect all users in every sub site. (When a user registers at subsite /a they are also registered at subsite /b, vice versa and [login to view URL] with Community Builder latest version. 2) I need updates, including image updates to profiles, article submission credits, gallery, (all plugin updates even fireboard plugins) to be reflected on ALL sub sites whenever a user updates there profile.....Not just one subsite. 3) When a user logs in to one site they should be logged in to another. 4) When a user logs out they should be logged out on all subsites as well. 5) we would also like this to be adaptable to other domains and servers but it is not necessary right now. 1) Any updates at any site must be reflected on all sites. Up and down. 2) Must work across domains and servers...not just one server. Max Budget : 30$ About payment : All payment is made via escrow after our FINAL APPROVAL. NO advance payment/escrow is provided. thank you.