If this was my building, I'd take a step back and sit down with a beer or two before going any further. Hold off on picking up the permit, in case you switch companies.
As far as the doors go, it could just be the wind rating required down here and they May not have a source.
If your not commited, call a few other companies, like Rhino steel buildings. They have a hand ful of buildings in SW Florida, I looked at one in Golden Gate back when I was buying mine in Ky. If your having these issue already, it may get even worse.
There's Dean steel buildings in Ft. myers, they build all thier components, but have been a little higher than other companies.
It is not unusual for the building companies to source out the pieces of the building.
As far as the door goes, white is the only color I've ever known of, some Rustoleum or other metal paint will fix that easily.
I'm not completly following their reasoning, but sounds like now that you have a permit, there true side is coming out, but I stress I don't know all there is.
Feel free to PM me and I'd be happy to to help you with what I know.
May be too much to type, but we can post up here for alls benifit.
