Reverse proxy application needed

I need application write in delphi will need exe and source aswell.I have attched the detailed scheme picture please have a look and this how application will operate So basicly what would happen is socks proxy server will be started on server host that has internal nework ip an it's behind the router or [login to view URL] it connects back to client application and connection link is established. Now on the client computer another proxy server will listen for incoming connections from local [login to view URL] say on port [login to view URL] as soon as i connect to [login to view URL] Client forwards requests to server inside remote internal [login to view URL] server replies with result which client will forward it back to 3rd party application for instance mozilla or irc.