A few more details, all the warning/caution tags were added last week during the nonstop rain. Swapped out the Ontario pipe for a kerker, a little more restrictive but much quieter and more responsive.
Have been riding it (when it's not raining), runs pretty good. It has a pair of Andrews ignition coils, dyna ignition (I'm contemplating swapping it out with marks transistor ignition, after a few more rides for comparison. My experience is I prefer the transistor addition. Its in my other 400f, but I like the points and most people these days don't), put a drilled rotor up front (a shelf part I've had sitting around for years) with some 1/2 " spacers and some 20w oil in the forks to stiffen up the springs and give it a smidge more damping (which is like nonexistent normally), also installed a set of barnett steels and fibers in it, pushed it to 80's on the mains with 16/38 final drive.
For just scooting around and reminiscing on any given day, it's fun, its all I do for the most part these days. Still need to replace the upper front brake hose with one of the appropriate length and put on a new rear tire, then it's done, for now... And as always, we'll find a good home for it.