Thats what roughly 60X80 building ?
Remember this , office & bath rooms will take 1-2 car stalls , frame machine/frame jig 1-2 cars stalls , paint booth and Paint mixing room 2-4 stalls , make sure every square footage is used to good advantage is all I can recommend. Thats almost 8 stalls gone for production / working on vehicles .
I dont have any sites you can look at , and there is a wealth of info from others here that will surely help you out .
Spray