Will, all:
I've attached a copy of our "bike pricer," the low-tech algorithm that we use to determine baseline pricing for our refurbished bikes. It is printed on the opposite side of a sheet of paper along with the "BIKE WORKSHEET," which is the paper form that our mechanics fill out to document parts used on a given bike. These forms have all the information I then use to enter them into our inventory/POS system (QuickBooks POS, in our case - I would probably use Lightspeed Cloud, formerly MerchantOS, if I were starting from scratch and the organization could afford the fees - automatic QBP syncing and no network issues as long as you have internet is so helpful!).
I've also attached a sample of the tags which we attach to the bikes in the showroom when they are put out for sale, which is generated by a custom-formatted template in QBPOS.