Did some minor sealing of the fuel tank -- the filler ring, the attach brackets etc.
But as I was preparing to do the big seal of the bottom skin, I thought, "there don't look to be THAT many rivets left," which is odd because I had a supply of the closed end rivets on hand (which I'd used) for various repairs to the RV-7A fuel tank a few years ago.
So I counted the holes that still need rivets: 84
Then I counted the number of rivets I had left: 77. Seventy eight if you count the one I found on the floor while searching everywhere for stray rivets.
So I now have to wait for the order from Van's to arrive.