The cost and bureaucracy required to get one working will probably kill this idea. Those machines require consumables to run the tests, as well as for calibrati

The cost and bureaucracy required to get one working will probably kill this idea. Those machines require consumables to run the tests, as well as for calibration and QA. The vendor might be willing to sell you the supplies and send a technician to get the machine set up to run a valid test, but it won’t be cheap, and they might be unwilling if it’s some guy trying to run the machine in his garage rather than a medical facility. Beyond that, there is a reason that the machine is on eBay and not being sold or donated. It could be obsolete and the supplies unobtainable, or simply beyond economic repair.