This is a dumb post and you deserve to get razzed for it. Not the tuning question but the huge preamble.
If the bike is tuned 100% perfect then 40 is definitely doable stock with a gearing change but the low end will probably be doo Doo. The 3 shoe is unnecessary I think. 1 turn in doesn't mean much. Get a fish scale and find out what amount of force it takes to open the clutch
Kitting will get you to 45 easy but the crank might die if you push it.
The main benefit of a new crank is that it has needle bearings which will last longer than a stock brass bushing that was never designed to go over 25-30 mph
Get a temp gauge before you buy anything else