Installed the gear leg fairings with the added upper attach bracket. Drilled through the brackets into the forwards fuselage floor and installed fasteners. I had some extra of the phillips-head screws in a short length, and just held the nut in place on the inside using a wrench taped in place over the nut. I almost did nutplates, but realized I didn't have any clecoes out at the hangar. This wasn't too bad - either takes 2 people to remove/install, or taping a wrench on the inside and hoping it doesn't fall off, but it also avoids how to countersink / dimple the rivets for the nutplate.
Bracket in place. Yes, there is a gap at the front end.
Left gear fairing bracket. Also a gap at the top of the fairing.
