No problem DB, I'll just finalise what I do and don't need first then you're free to make me an offer on the pile.
Having thought about placement of parts I still need a bit more room than what is shown in the picture above for the power supply to the stepper controller. I've attached a picture of the back panel with different parts highlighted. Purple appears to be a line filter for the supply, so I'll keep this. Greens are ring through which supply power is fed through. No idea what these are or what they do. Orange are proper relays with switches. They will have an important job so will be kept. My biggest issue is with the cyan block. These are described as relays but I can't see any switches in them, they just look like cable connectors to me. Am I correct? If so, I could easy drop a few of these to make room for the power supply.
Help appreciated.
Steve