Thing is, repaired drums never bring near as much money as the original thing in good condition. In nearly all cases repairs are detectable and someone will find that "work" was done. If I'm paying all the money for a decent original drum, a repaired shell (or plugs, or re-wrap, or re-cut edges) or other alterations significantly reduces the value. There are just too many nice, fully original 80's Tama Superstar drums still out there. Damaged ones, whether repaired or not, just don't have the same demand or bring serious money. Let the original seller foot the full bill for repairing these drums....then sell them on Ebay with full disclosure of said repairs.Although the damage should have been divulged, it is true that it is totally repairable. Plywood IS wood that is glued together, so correcting ply separation is regluing it. As for cracks, I've had two such cases: one where I closed a car trunk on a drum... fixed that myself; and a 1960s Gon Bop set of bongos, that one was more worrisome because they're tuned high with thick heads. I had a woodworking pro do that one. That was 25 years ago and it remains solid to this day.