I don't think acetone will soften superglue. Maybe just fish with it until it cracks again, then clean up and use the epoxy. I used the cheap Gorilla 5-minute clear stuff. Best regards, I'm sure you can get a top for the TCB, might have to contact the mfr. The only good US rod I ever broke a tip on was a St Croix trout special, and they gave me one free when I called them.