Started to rivet the bottom skins

My parents and wife gave me a great birthday present: looking after the kids and helping me to rivet the bottom skins. Lots done today :)

Setting up for riveting the bottom skin.

The suggested 3-3.5 rivets are a little short but should still meet mil-spec when riveted so I will go with them instead if the "perfect lenght" 3-4.

I will need assistance to rivet the top rows.