Looks like you're off to a good start! Since you already have a headset and bottom bracket, if there are any threading issues (I don't think AD used anything besides ISO, but I've been wrong before!) you've avoided them. What's your vision for the build? I love that three-arm Stronglight crank. Given that it has clamp on TT guides, my guess is late 70's. One important widget you'll need to track down is a clamp on cable stop for the rear derailleur.