Fan shroud questions.

I have access to a thin plastic release film at my work. I will use that, however i am sure wax paper will work just dandy too.

The radiator i am using is an engineered cooling products radiator, and an 18" flexalite fan. If anybody wants, i can trace my templates onto thin posterboard.

I plan on making and riveting on metal tabs to attach the shroud to the radiators side flanges.