From what I have read, I cannot provision domains on my single Plesk server, using WHMCS as it seems you cannot have WHMCS installed on the same server you wish to provision on to. Does this really mean I need to but two Plesk licenses, one just for the WHMCS server, and one to provision on to. cPanel does not seem to have this restriction. It seems a waste to have an entire Plesk installation for a single WHMCS management instance, or am I misunderstanding something?