Mitsubishi pcb for obsolete unit

I am trying to find a pcb for a Mitsubishi outdoor unit that is now obsolete and parts not available.
It is in a village hall and like lots of organisations times are hard. I would rather not replace the system as it has been boxed in by a plastered block wall, if I have to replace the system I wouldn't be charging properly for it.
The unit is a Mitsubishi SUZ-A24vr.TH and needs pcb pt no 156200 or E02852450.
If someone is stripping one out or has a pcb it would be much appreciated. I have been looking on ebay for a while with no luck.