Estimating jobs...

First you are trying to make things perfect, admirable and it’s what every customer wants but they may not be able to afford it. The adage that you can have it two of the following; fast, good or cheap but not all three is a good discussion to have with customers.

Think of the estimates (& establishing an understanding of what you will be providing) is the most important aspect of a project. I know that I can’t do it for my own car projects so I can’t help with the details but you have some excellent suggestions from others.