Played a little with the the pair yesterday, both turned on once connected with the proper devices.
One on them won't boot to the Os (the original Conner HD is not working) but the other (the one with the RasterOps video card) booted to 7.1 without any problem.
I spent half an hour fixing the floppy drives as both were stuck, and have a look at the impressive collection of discs the owner gave to me.
Unfortunately, the system itself is missing
but i have most of the original documentation and some original interesting programs (Adobe Illustrator, Conneticx Ram Doubler, Hypercard) and tons of sharewares.