[Accelo]

The group covered most everything.
A few comments;
Compressor companies lie on the HP and CFM ratings. Caveat emptor.

Plastic for air lines usually is only approved for underground usage. Otherwise it is typically illegal for the reasons listed. It can blow up if damaged.

Blast cabinets use a lot of air. If you use it much, to be happy, you will need a 5hp two stage inter-cooled compressor.

This means the motor will require roughly 26A at 220V running. Manufactures love to rate the motor amp draw as SP. (Special Duty) You will have no reference as to the real hp of the motor.

Get the largest tank you can afford. Used Horizontal compressors are less money as they take up more room.

All tanks are dated by law. Avoid the ones over 20 years if you can. Hit the bottom with a welding hammer, with no air in the tank, before purchasing.

Big and heavy are your friend. The slower the pump rotates the longer they last. Never purchase an oil-less compressor. Just junk and noisy as heck as the piston is open to the air. They are a giant speaker that just happens to pump air for a short time. None will last in blasting cabinet usage.
Cheers.