At this point I can mate the three big section of the wing that have been made, the tank, the leading edge skin and the spar section I just skinned.

The first picture shows the tank and the leading edge skin screwed together sitting on the floor. I lifted it as a unit and put it in the cradle. Then my wife helped me lift the spar section onto the tank and leading edge.

I did this a little different than the plans and if you do too you have to take into consideration one small problem I foresaw and worked around. The tank is bolted to the spar but the leading edge is riveted. All of the ribs in the leading edge are riveted to the spar with blind rivets, except the inboard rib where bucked rivets are called for.

If you install the tank and leading edge skin installed as one unit - as I did and shown in the pictures below - you will not have access to buck the inboard rib of the leading edge, which is in the middle of the wing.  In my case I have lots of various blind rivets left over from my Sonex build. Including some Sonex didn’t call for, such as various sizes of Cherry Max rivets. I substituted some number 5 Cherry Max rivets of the correct length for the number four rivets called out in the plans. Worked very nicely.