Realized that I ought to post as of the date of when the work occurred and will do so moving forward.
Got the front sprocket count, 15 16. The crank case was filthy, 4mm think of chain oil and gunk. Cleaned it up.
Tried to take a photo to show the shifter lever height.
Cleaned up the engine hangers.
Couldn’t find fine brass wheel brushes anywhere; will research online.
Verified that fuel line fits carbs.
Tidied up; the number of parts and supplies has again multiplied.
Confirmed that WordPress reverses the image order regardless of how I select the files. This is undesirable since the images are out of order in relation to the post itself; need to find a fix.