Auto body repair & detailing: paint, body, ingersoll rand, paint body

Question
My window seems like someone broke it, (the arm only) not the glass.  Should I just make a plastic arm or buy a new regulator, if the arm is attached to there?  Also do u know what specs of a air compressor I should invest into to do a whole body primer, paint job (3 coats)?  And specs of the regulator or type of sprayer to buy? gallons of air compressor? hp?  


thanks in advance,

Answer
Hello Richie
I'm going to need some more information on the issue with the window before I can comment. Like what kind of car?, and what 'arm'?
If you intend to do this kind of work on and ongoing basis I would suggest a 'T30 Ingersoll-Rand or something like it,with a 3 HP motor .This will give you the constant air pressure you need to spray a car and have the pressure hold. The guns I use are Sata.
Hope this helps.
Dan