"Half a dozen of one, Six of the other"
...so goes the old saying.
Started installing the inner primary from the 850 and realized there was no hole in the VR880 cradle for the Mark III shifter crossover shaft.
Plan "B". Installed the Spyke starter and then tried to fit up the carbon fibre inner primary and found that the top alternator stator bracket stud was too large in diameter for the CF primary dowel hole; drilled it out and proceeded to fit it up.
Oh, crud. The belt drive clutch basket hasn't been fitted up with the e-start ring gear yet. Never mind, on with Plan "C"; I can kickstart just fine. Removed the starter.
Tension of the belt wanted to keep pulling the drive pulley off the taper, so I fitted up the alternator rotor. Well, isn't that special, Norton decided to cast in an "oh no you don't" lip that prohibits you from installing the Mark III alternator stator frame with the rotor already in place! A pair of vice grips made quick work of that lip, dressed the edges and installed it. I'll need to carefully trim up 4 spacers for the alternator frame to stand it off the appropriate distance from the crankcase in the absence of the OEM inner case half.
It's a bit of a fiddle to get the two alignment dowels meshed, and then start the center fixing nut on the CF primary, but it's done.
Installed the Barnett friction plates with a final extra scrolled bronze plate to bring the stack up to optimum height, and popped on the diphragm and retainer clip. Couldn't seem to locate the clutch rod adjuster, so that'll wait 'till tomorrow morning. Installed the 32mm intakes for the stock 932s. All in all, good progress today.