919's are super simple, maybe half a dozen electrical components in them, all easily replaceable. There's no way anyone should have charged you a grand for repairs. I'm curious what all they claimed to have done for that price!I have bought 4 used 919, not one worked and same price to repair as replace, the one i spent a grand to fix didn't last long either.
Try to find a protein tester even close to it in price. It has seemed very accurate for me. It also tests oil and carbs. It takes 2 heads of grain to do a test. Or less.That GrainSense unit looks interesting. However when I go to the local dealer's page to see how much it costs, I see "click here for a quote." That never gives me encouragement.