Well after a rather long delay on the true building of the RV due to moving houses, tools, getting the old place ready for tenants, I'm back at it.
Matched the Wing Doubler W927 to the W902 Inboard Top Skin first and then clecoed it all to the wing structure along with the W903 outboard top skin(overlapping the inboard skin). I managed to get at least half the holes drilled and marked(so i know what's been drilled to a #40).
Wing Doubler before going onto the structure
Wing Doubler sitting approx 9/16" behind the top skin just clearing the front spar
Cleco Skins
Drilled #40 holes and marked