well green, my experience is that the majority of the parts guys, motorcycles or cars, don't know that much either, because there's just too many parts. So you tell them what you have, they start looking it up on a pc and then either order it or pull the number from stock. You'd learn as you go. I really don't think it would be a big deal. if you love body work, then you can always take a votech school class for fun, and maybe work that into the dealership, but only you can decide that.

I would say that depending on how good your current shop is wrapped into the insurance companies that there will always be accidents, but to me it sounds like you have a small shop relying only on basic walk ins, so that's not particularly fruitful.

Good luck with whatever you do and decide.