Create a TunnelBroker like node

I have a server with 1 single IPv4 address and /56 IPv6 range I need to the freelancer to set up this server to act the same as HE's tunnelbroker. NOTE: I do not want to connect to HE's tunnelbroker services. instead I want you to create my own tunnel so I can give it to my friends and family locally. The functionality should result in a user can will set up the tunnel and be allocated a /64 prefix to their end (just like tunnel broker) Please detail briefly how you plan to achieve this issue and what price/time frame this will be like.