Ok, so one of the XE's I had it my attic was just the lower case and the board from a 130XE. Sometime in the mid 90's I have clearly labelled this as a none working 130XE board and it went in a spares pile.
Alongside all my other A8 hardware tinkering over the course of this year I've been revisiting this board on and off to try and get it to at least show signs of life.
Basically here is the timeline.
April - found board in attic. Standard 130XE rev 4 C070067
I can't recommend Fluke multimeters highly enough. I've used them for going on 40 years and they are great. They do have many higher end, more expensive models, but they have some cheaper, lower end models. I'd only use a higher end model like a Fluke 87V at work, where we deal with 480V three-phase voltage on a daily basis, but a Fluke model 113-115 is great for bench use. Don't get me wrong, there are plenty of other decent multimeters out there, and if you're only using it on a work bench for