The rack in this image appears to house a Texas Instruments minicomputer of some model, not sure exactly which. 980 maybe? Might be fun to play with, but not for $20K.
The E and S rack was an 'image generator'. That one was called an SP1. I fondly remember the SP3T as being the pinnacle of that series; the T meant "texture processing".
image a computer display made up of 1000 line segments. that is what you would get. it was possible to buy these with an output that was not raster, rather it drew on the CRT with vector segments. incredible light points to simulate night landings.
At the minimum you’d need a telehandler or forklift capable of lifting 20,000 lbs (according to the listing) which is probably $1,500 for one day with delivery and pickup, a flatbed semi trailer to load it on, and labor to load it. If the equipment isn’t on skids you can lift with a forklift, then you need riggers and a crane truck. Either way sounds fairly expensive, and that’s without having a place to move it to.
https://i.imgur.com/b3py96N.jpeg
https://imgur.com/gallery/dc-8-simulator-xY7eS