Blues, sorry but no. Your organisation has known since before the system was purchased that WinXP had an expiry date. You've deliberately based your critical infrastructure on a system that will need to be routinely upgraded if it has any network connectivity to anything with an active USB port or an Internet connection (Iranian centrifuges, Stuxnet and SCADA anybody?).
The fact is you've chosen to ignore it due entirely to cost. All because whoever made the original purchasing decision was an idiot.