Questions to ask @ the paint shop?

So a written estimate? I didn't plan on paying up front, is that what some shops require? I remember a thread a while back where it was now one year since the shop took on the project. I certainly hope things work out for him.

I was told he wants the car for 4-6 weeks, 2 months tops. I can live with that.

Do most shops provide a written contract / estimate before work begins?