Ok, I got my boards and displays tonight and have put them on the machine. I noticed the boards have had some modifications. This is what the seller said was done.
"The battery on the MPU has been moved off of the board so no corrosion will ever happen. I also believe that wires were soldered straight onto the power board, this was all done before I ever received the machine. These will need to be attached to the connector that is on the MPU."
Can someone confirm if this is ok etc. I have attached some pictures and have started to clean up the machine. The door is coming up nice.