Nice work. I'm currently building a 61 flatroof and it looks like we are heading in similar directions. I just delivered the frame last night so we can work on the final prep before paint. I have spent the last couple of weeks prepping my belly pan for the spray-on liner.
My plans...For the drivetrain, I have a 383 stroker, BW T10 4spd (may swap for 5spd), the level 3 suspension kit from Ridetech, C6 brakes on all four corners, Wilwood master, and Borgenson steering box.