I have decided that I want to epoxy paint underneath my car and I'm also going to paint the engine bay the color of the car. To do these two jobs will this compressor size be adequate?

It is one they sell at Harbor Freight for $440.00 - 29 Gallon, 4 HP, 14.5 CFM at 90 PSI.

After tax and accessories I will be into it for over $500.00 and that is all I can afford.