seeking SS20

I haven't touched the box in a long time. What I remember is that it had two processors, and they were the fastest available for that model. It had the largest VSIMM available (8Mb?). It had 2 disks. As I recall, it had the maximum possible memory compliment. Everything I remember about the box says that as SS20's go, it couldn't get any better. My interests are wide and varied: Old computers (pretty well set with Sun and DEC), radio (ham radio and tube receivers like All American 5's), photography (film/digital) and interesting old tidbits of technology. The one thing I have yet to find is anything from Data General. I have family that wrote AOS/VS for DG and finding and example would be really nice. One need I have is for a microscope capable of 200x or 400x for working with my barnyard animals (I'll spare you the details of what I need to look for at the microscopic level).