I spent a few hours cutting initial blocks, creating custom templates,
remeasuring and testing the plexiglass templates. I felt I wasn't
getting anywhere fast, but I knew I'd start making progress.
Cutting the strips just an eighth of an inch wider and using the template let me stitch together and trim down to perfectly sized diamonds. Success! I also figured out how to consistently get the points to line up (well, 13 out of 14 - not bad). Took way too long to do those...
however ...