I added the cowling closeout bracket and attached the lower plate to it. The circular cutout hit the gear leg (remember: this is a new gear leg because of a service bulletin) so I moved it back and drilled a new hole and cut off the aft end a little bit to make it rest flush with the aft end of the lower cowling.
Then I match drilled the 8 holes, removed it and added nutplates to the cowling closeout plate.
It's a little off center, so I added two layers of 9 oz fiberglass to provide a little extra strength.
I had already added the two nutplates on each corner from a previous instruction, but I had to drill all four out to match drill those holes to the lower cowling. Then I reinstalled the nutplates in that location.