I got back into the garage today and was able to get the doublers fabricated. I took the two stock pieces of AS3-025 x 10 x 48 and marked it to size for 26 x 9 3/8.
I rough cut both the left and right wing doublers out with the snips, and then moved over to the scotchbrite wheel where I removed the rough cut down to the finished piece.
Both left nad righ twing doublers are ready to match drill with the W-702.