Need Advice Re: Heads

[AUdubon5425]

Last night I was working on my Canon VR-HF600 (Panasonic) VCR - the grease had gummed up in the loading mechanism and I disassembled and cleaned it well and relubed the gears. There was a little drag with the arms that stretch the tape over the head. While applying a little grease to the track I got a dab on the head drum itself.

Good Grief.

I cleaned it with alcohol immediately, but it appears the damage is done.

Is there anything else I can try? If not, where can I get a replacement head drum assembly for it? I called MCM but they said they no longer sell them.