Um, you've still got A LOT of excess material on that retention cover...and you have that really nice Rikon stationary disk/belt sander...wink wink.
Just had a thought...I've been spraying the area around the motor mount of my birds with high temp flat black. It's not the ceramic header coating folks have been talking about, just the old skool header paint. The idea is basically to make the rockets look "cleaner" without actually having to do any clean-up,
In the case of Tank Girl, the flat black will look like part of the color scheme.