Earlier quoted context omitted.
I am not even remotely an expert, but many motorcycles I've seen that spent couple of years in the storage, let alone ones as old as that, need a lot of gaskets, seals, tubing and what-nots worked on or replaced - or at least examined/tested/cleaned. Plus you want to give a conservative estimate. Also remember - if I am doing repairs for fun, I only count the parts cost. But if I go to professional mechanic, it's $10…
Bike mechanics are in high demand and not super common. The quote he gave seemed super on point to me. It’s what I’d charge if someone asked me to do the same thing. I could probably get it running for less but it would probably continue to break down over time
For the labour of an oil change, I was quoted $25 for my car, and $65 for my motorcycle.
To change the oil and filter on my car, you have to reach in a super terrible spot prone to burning and cutting people who attempt it.
On my motorcycle? It's an enduro, I have a foot of clearance and can see the single bolt required from across the driveway, it also requires exactly 2 quarts.
I got quite quick at changing my bike oil, and continued to pay someone else to burn themselves on my car.