Mike, that sucks! Hopefully the magnet will work! If not, warps method sounds like something you can do fairly easily?
Bigger question is how long will it take you to get a replacement sleeve (and gasket if you have to pull the sump) on the island?
We've had a week of beautiful weather here in the Pfalz....of course my bike still won't be back together until tonight or tomorrow and rain's on its sway in
at least you're guaranteed good weather when you get her wrapped back up