I'm retrofitting a DM4400 and will have most all of the hardware from in the control cabinet available as well the X, Y, and Z axis steppers, encoders, and cables for sale. I will list them all on eBay at some point and link in the eBay portion of the forum. Just wanted to extend a general post in case someone is looking for something in particular. Please PM me if you are after parts.
Also this machine was the SKIP controller and would power up but the previous owner couldn't get it to initialize one day. So the some parts may be a gamble.
Tim