You should check your state laws. The Dept of Ag handles it here. There are probably very strict rules. A cooler might not pass for something as perishable as custard.

I'm not familiar with pinto bean pie. What's it like.
Lemon curd pie sounds good!
Feel like sharing your recipes? : )

We aren't allowed to sell any custard/cream based products at our market without a commercial kitchen permit. They have requirements that have to be met concerning the temperature those items must be held at.

I just finished our state's microprocessor workshop, I learned alot! I think I will stay away from custard and creme pies altogether. I do have a question though--what constitutes a custard/creme pie? Anything that has an egg in the filling. Pecan pie actually have eggs in the filling, so would they not be allowed? I'm really confused about this one.