I thought I would have had the boat flipped right side up by now, but everything takes much longer to do than I initially think.
At some point though I will have to reassemble the build cradle to receive the painted hull, so I would need to know where it would interact with the keel and bottom panels.
The cradle was too heavy to check this, so I made a pair of cardboard templates to do the positioning. Here they are in place on the hull bottom.
I will mark the bottom with tape so we know where to drop the boat into the cradle when the big day arrives!