I riveted the end ribs this evening. I needed to use 4 blind rivets in the leading edge near the bracket, the other tank only needed 3. I had enough sealant to cap all the rivet heads and bolster the filet on the inside.
I also torqued the fittings for the vent and return lines and applied proseal to help hold the wires for the capacitive senders to the vent line.
