Elastic,a2billing phonecards and VoIP server set-up

I have an existing server and account with net2phone, did live and a2billing but my server got broken and would like someone with knowledge and experience setting up the server again. I want to use my current DID access numbers and maintain the a2billing data intact. For short I want you to set up the server again and use all the existing resources and accounts to synchronize everything again.