The distance from the flywheel to the surface on the collar that the clutch fork rides on should be about 92 mm. Lay the pressure plate down and set the collar on the fingers to take the measurement.

About the tranny, it seems to have more electrical connections than 4 speed. Can anyone provide me info wich one is wich?

One is probably a "top gear" switch. I think that all of the switches are normally open and close when activated. A multimeter, or battery and test light, will tell you which is which if you move the shift lever.

Well one is your neutral switch, one is the reverse light switch, and I have no idea what the other one is.