If you don't mind, I'll call you "Scott" (Just a name I made up, but seems to suit you).
Scott,
I went back and looked at your previous posts and it seems no one has mentioned that, if you happen to get this bike started after sitting for 30 years, it is likely to soon need an expensive rebuild due to oil starvation at the rod journals. Ask me how I know. If you rebuild it now, clearing all oilways including the sludge trap(ped) inside the crankshaft, it will still be expensive, but probably less so.
I'm certain that if tune-up tips are still your first interest, better sources than I will soon respond. On the fitment side, yes, three nuts hold the magneto and one of the three is on a rod-like extension to reach where no tool will go. The mag is gear driven. The dynamo is chain driven.
I suggest buying a Haynes manual and getting tips from the members here about what to do differently than written there. Also, you need a parts book for your year model, available from many sources.
Looking forward to hearing about your progress.
Richard L.
I see someone else has posted while I have been typing, so, apologies for any repitition.