The compressor's a beast. 6.5HP 80-gallon two-stage making 175 PSI. Can't remember what the CFM is on it. I think I remember it being right at or above 20 CFM at 90 PSI. Like you, I knew I needed major airflow for the blast cabinet.
Big project to get it moved, though.
The Ingersol Rand T-30 has a five HP motor and I believes delivers around 19CFM@90PSI/15CFM@175PSI with a 175PSI Max.
You are right. It is a bear to move. I left mine on the shipping pallet just in case I ever want to move it.
I have it in a small shed beside my garage for sound and clean intake air reasons. I still need to run some more air lines around my shop.