Day two of the cutting and sanding - maybe another 10 days of this...? :)
It seems to go better waiting for the compressor to catch up and use the cut off wheel at full speed. I firts cut the left side "excess" off then I made a few cuts at the rear and the front - probably 1/4" with each cut. I made the cuts/sand/measurements and I am going slow and sneaking up on the right fit. This will take a while...but that's ok.