You have $500 in a used drum (which is probably too much already). Repairing it will cause you to invest quite a bit more in the drum and you will loose all the history. My suggestion is live with the flaw and glory in the history!!
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'80-'81: Timbale/Bongos
'81-'85: Snare/Captain ('83-'85)
"Don't leave spontaneity to chance."