I have an 8x12 rounded corner blue/olive badge, 217xxxx, in nice blue sparkle but its a concert tom and has rivets on the seam, small lugs. No extra holes with original clip on mount.
These came with bottom bearing edges already cut, but with a removable aluminum ring on outside (already detached). Would need drilling, lugs and hoop for bottom, assuming you want the lugs and hoop that are on it. Sounds like you have parts and things to trade? PM if interested in pics. Oh, and I also have a 9x13 of the same.