I hope you find that flywheel. A NOS flywheel with the advance mechanism and corresponding stator plate complete with coils, points, condensor and wiring sold recently on eBay for $800. Good used ones are rare.

$800 wow! i better get that flywheel out of the crappy box its in and store that thing better! At least now i know what year it goes on. Im curious how different the stator looks though.

I can shoot a picture of the stator for the advance type flywheel tomorrow. It's off the bike.

Enduro Nut, here ya' go.  This is the original stator from my '70 RT1 M.  It had the advance type flywheel but the mechanism had been locked, presumably at full advance position.

I think the advance stators will have a number starting with FZC and as DEET says the points are farther away from the crankshaft. This is the advance stator from my RT1b. .


My DT3 has the non-advance stator and has a number starting with FZA.
 

They look just like mine which are off a 72/73 360. These were rebuilt by DEET. Mine all say FZA thats the only difference from what i can see. Probably one of those things where you need both in your hands to really tell. I wonder what would happen if you swapped the stators between the years? probably be fine but im not the expert here.
On a side note im glad i dug these out because i just now noticed that somebody modified the stator plate mounting holes on the one so you can advance or retard the timing!