I've acquired quite a few Tektronix TM-500 modules, most of which don't work. Repairing them is incredibly difficult because they have to be slotted into the power supply rack in order to be powered on. I've looked for extenders and they're all either very expensive or no longer available.
What I've thought of is a design using using two separate boards, one that gets connected to the module, the other gets connected to the inside of the power supply. They'd be connected with a ribbon cable of some kind.
Would anyone be interested in this sort of thing? What would you be willing to pay for it? Would you prefer to purchase as a kit (components and boards all provided, just needs to be soldered) if it was cheaper than a fully assembled board? Note that a kit would involve soldering multiple 58-pin connectors.