I don't know of a "how to" for building a cockpit. I have got ideas from actual photos....Squadron Signal publications are just one of many sources depending on the look you are trying to accomplish.....civilian sport, WW II fighter, modern jet, etc.
Paints for pilots are going to depend on the type of material they are made of......Williams Bros. pilots are made of styrene plastic which will allow you to use ether enamel or acrylics.........Testors Model Master, Polly S, Humbrol, etc. If your pilots are a soft vinyl you need to use acrylics because enamels will not dry...........Testors, Polly S, craft paints, etc.
Just my 2 cents........
Alan