Make a template.
I made a photocopy of the scale section of the drawing, and then punched holes on the lines of the copy. I then taped the template to the skin, and could shuffle it this way and that to get it in the right place, and used a fine point sharpie through the holes to transfer the patter to the aluminum. Cutoff wheel used for the rough cut, and a dremel bit and emory cloth to fine tune the fit and clean it up. You'll probably have to enlarge it in certain places for the best fit, which is a relatively easy iterative process.
Good luck.
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JV
Calgary, Alberta, Canada
RV7 QB - Airframe largely complete, sans canopy and glass... unfortunately sold
RV6 - O-360-A1A, Hartzell CS, dual G3X VFR... purchased
Dues paid 2015
"Being defeated is only a temporary condition; giving up is what makes it permanent."
-- Marilyn vos Savant
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