You missed the whole point of why you're a moron. Yeah prices for those little items are a bit steep but a torque screwdriver is not how you torque test a binding, genius.
Shops buy those machines because of efficiency, accuracy, and among other good shop practices, would cover their ass in a lawsuit situation. Put it this way, you're saying to spend as little as possible for something that can cost you millions in a lawsuit when you can spend MAYBE 40k, have it paid for in one small season, and use that machine for the next 20 years with ridiculous profits and only need it to be calibrated from a rep from time to time. Read my other comments above. Plus if you've never worked in a shop and haven't mounted and torqued bindings using different proven and certified methods, than just shut up.