Can't you install OpenVZ and slab it into a VPS to host both your website and billing system on? After all, you have "a 104GB RAM Datacenter..." You actually own a datacenter? Don't you mean server? It seems that the thread OP is inexperienced and is lying about the resources he/her has.
Umm, about ordering via/ Skype. That will never happen with me.
Well, the hosting services are being postponed for a while anyways. Also, did I not state that we were working on installing WHMCS? Oh, and by the way, just because of the fact that I am just starting up does not mean I was LYING about my resources. Please, don't jump to conclusions.