would it need to be THAT big for just the small sensor? i was thinking of a simple bracket that bolted to the thin fin just forward of where u say drill and tap....it looks strong enough, plus i dont think the bracket needs to be that large?

also, would the end of the sensor work, or do i lay it flat? the end of the sensor has a bevel, and the bevel will trigger the igntion. i tried it, 'seems' to work if i can make the bracket work..