After working in the garage for a while, I came back inside and screwed on the end ribs to the wings. I used white screws instead of rivets. See pics below...
These fuse blocks were placed where they are on the firewall because they are very easy to reach while standing outside the plane. I can reach right in without trying to get up under the panel. And although it may not look like it, the rudder pedals are well clear of the blocks.
So I ordered a box of 100 white 8 X 1/2 screws and screwed it on. The white screws look great!
