So heres my list, its not as fancy as markb's but it works. It fits my 78 750 F3 but it shows that it will also work on a K3 K4 K5 any other models it may fit but Im not too sure of. Some of the bolt sizes have been shortened... eg, I wasnt able to buy a 36mm long bolt so I got a 35mm long bolt. It works for me but I just want people to know this so enjoy at your own risk.
All Bolts listed are M6X1.0 unless otherwise stated, the numbers listed are for length.
Valve Cover ( I did not include the bolts under the top cover )
4- 40mm
1- 50mm
2- 75mm
10- 60mm
Speedo screw M5X.08X25mm
Transmission Cover
2- 30mm
2- 35mm
3- 40mm
2- 50mm
2- 55mm
Generator Cover
3- 20mm
7- 30mm
1- 35mm
Clutch Cover
7- 25mm
3- 35mm
Hope that helps out, as I replace more I will re post.