Have been working through doing preparations on parts while it snows and VERY cold outside. Cutout the required notches on the seat pan so that the seat set in the fuselage nicely. Back drilled the six attachment points, installed the nut plates on the fuselage brackets and verified that the screws all lined up. Still need to locate and cut the holes for the seat belts but have some location questions that I am working out before I do that. Have begun doing the prep work on the floor boards for the baggage area. Multiple coats of exterior poly on those. Installed the parking brake mounting bracket on the center console. Flush riveted and Hysol'd that. Cut the stringers to the correct length for installation to the fuselage. Drilled and cleco'd the stringer to the mounting brackets, filed in the notch required to fit the stringer past a fuselage structural member and notched the ends. Had to hold short from the full install till the window frames are all installed. Speaking of windows as we were ....... Fitted both left and right window frame pieces as well as the lower parts of the doors. Once done, I painted them with some 2K primer along with the stringers. Once they have dried, will complete the installs on the window frames and the stringer. As usual, doing all the prep work on this doesn't really look like much progress but once that is done and I get to really install those parts - it will look more like an airplane!