Ok leave me with this to digest a little as i've never done one of these and I'll find out what's what and I'll come back. Got a handle on most of what's in there but not sure about a couple things.?

i2i is the man for these so would be helpful if he popped along.

If anyone knows what the Small green board next to Blue Cap does then speak up.!

Also whats on the front of the machine regards controls etc and what's being controlled externally IE: coolant, air etc because there a few relays in there so they must be switching something on/off.

Can you take a closer and clear picture of the circuit board with 3 black heat sinks on. This will be the driver board I would think. The one under it will be the controller which talked to the BBC computer which will be replaced with a new board running Mach3.

The white box is spindle speed controller and we will reuse this and control from the breakout board with spindle control built in.

The rest of the stuff Transformer etc will be re-used.