Yes, there is an additional charge for paint. You can have any Pantone color you want but I think the ones included in the first post of this thread will be a bit cheaper if I understand everything correctly.
This thread was just to gauge interest to see if there was enough. As we approach the target number of 30, I'll set up some type of group excel sheet where everyone can enter their official order including paint color. We're pretty close currently so I'll do that fairly soon.
I'll put an image ad at the top of the form linking to the sheet so that everyone knows to go to it and enter their order details. There are still some things to work out but since the frame isn't even ready yet, I figure that gives us time to get things organized.