[DanEC]

Well, I know it took me about 2 months to finish wet sanding and buffing out my paint job (self painter) but I wasn't working very hard at it and fortunately I wasn't having to pay myself. Seems to me that assuming the paint is pretty well applied and doesn't need much more than to start with 2000 paper, your talking about 2 to 3 or 3 to 4 days most likely from start to finish. That should be enough time to do top to bottom and intricate surfaces and details. Depending on what you charge for an hourly rate that should figure up pretty easily.

Since you didn't paint the car I assume you are telling the owner you are going to do the best professional job you can but since you didn't paint the car and don't know how much paint is applied, it would be unreasonable for you to accept responsibility for burn throughs due to thin paint. If he doesn't like that, he should take it back to the shop that painted it.