The power supplies in this system needed some close attention. The low current supply (the one with the silver caps) had an unusual power transformer unlike those I have seen from Digital Group. I concluded that this must be an after market replacement. Since originals are hard to come by, and since I have no extras on hand, I chose to restore this one by cleaning and painting it to look like the original. The results were quite good as seen in the photos below, the transformer was painted black and a duplicate of the original label was attached. Only a true DG snob will notice the fake! :) Then again, for all I know, it shipped from the factory like this--maybe they ran out of the originals. The other power supply needed a lot of work to clean up, but all went well. The red "Danger" sticker is a non-original, placed for safety sake.

The system had some extra holes drilled into the back, and I thought, what the heck--I'll patch them! So I did. I taught myself to weld aluminum--still have some learning to do--but it worked well enough. The repair is almost unnoticeable in the finished machine. Visible in the pictures is the brushed aluminum finish that I do to clean up most of the cabinets I restore. Over the years, the cabinets loose that "new shine" from getting bumped around. I use a belt sander to re-brush the finish to like new. Painted surfaces are either stripped down to the bare aluminum and repainted, or just touched up with an airbrush depending on condition. 

And now, the before photos:

Reassembly:

Second System: