I reassemble the parts and pieces of the spar tunnel and surrounding attach angles and gussets. Began riveting these things in place. There are no longer any clecos sticking out of my fuselage. I did not feel that the CCC-44 rivets were long enough to go through the entire assembly. I had to order some CCC-46 rivets; these are hard to find but I found that the SONEX store actually sells them. I am awaiting their arrival. It takes some creative manipulation of the hand riveter to reach these but it can be done.