Thanks, Ken & Steve! And Zac, I'm with you 100%, I spent at least four hours scratching an elevator-cable pulley for the back of the box the seat is mounted on, knowing full well that you wouldn't be able to see it. And the rear bays of the fuselage are semi-detailed as well, but it's been a while since I've done any rigging and I'm just doing that for a warm-up.
I'm well into
l'intérieur at this point. Mine is probably going to differ in some respects from other builds I've seen, since I'm basing it on the only three photos I've been able to find of indisputably French Bébé's (two are of the sole surviving N.11, currently hanging from the rafters at Le Bourget). Rather than the diagonally-laid mahogany laminations in the N.17, it has cockpit sides constructed from single panels of mahogany ply with the grain running fore & aft.
About 1999 my late brother was throwing away a Griffin's Robusto cigar tube, and, knowing my predilection for materials that might be useful for scratchbuilding, pulled out the cedar wrapping and said "Here, I guess you might be able to use this..." So I added it to my wood stash, and, twenty years later, realized it was the perfect color for those ply panels:

Thanks, bro'.
Dave V.