No way in hades they'd let you check it but I've been wrong a lot before. I could be wrong again, but the size, weight and shape would be a big veto. You're going to be paying out the rear end for air cargo for the aforementioned reasons. All of my experience with Delta's air cargo operations have been documents or packages no bigger than a shoebox, so take this with a grain of salt; but I think you're going to have to factor in packaging it (at least shrink-wrapping) and possibly palletizing.

Since you're in CMH, I'd recommend giving R&L Carriers a call for a pick up the air cargo terminal to either your house directly or to their hub near ILN. You'll probably pay about 1/10th.