Johnny came up with the killer solution, remove the bad section of plate and stitch in a piece from another plate. The hole was spotted by piloting through the case with everything bolted up and then drilled with it removed again, the way it should have been done in the first place. Worked a treat, the join is seamless and for all intents and purposes invisible when it's been painted, which is the next job to knock off of the list.
Best Thanksgiving EVER !
50 minutes ago