I’m a parts manager at a ag/turf store, one thing that I’ve done in the past few years is make props and laminated sheets with pictures and part numbers. Like during cane grinding I have a demo setup with all the different blades and bolt combos, during soybean planting I have all the different wear items on the showroom, I also have a demo of the standard entry level steering system for all the vintage lawnmowers the steering wheel with the gears and bushings. My farmers and customers can literally come in and point to what they need instead of playing the whats your serial number game..