don't worry about it. The clutches may be different sizes, sometimes the clutch plates are different, and the surfaces may be metal or the brown board, so direct torque comparison isn't too meaningful.

as long as the leather is in good shape and you wipe off the surface oil with a paper towel, the gear motors will be happy.

for quick testing, you should be able to turn the clutch driven thing (slipping the clutches) by pushing with one finger. The timer and replay cams will take more/less force depending on how many switches are being lifted as you spin the cams around.

neatsfoot compound is more fluid than pure neatsfoot oil. Either works.

does the plastic number wheel have a pin poking out so there's only one way to put the wheel on ... and if so, does the number wheel only have one hole for the pin?

the wipers determine their own home position, but it may be possible on some games (I don't remember) to have the wiper shaft keyed 180 degrees off so the pin is 180 degrees off.

if that's the case, the correct location lamp will light, but the wrong number is at that location. If the number wheel doesn't have multiple pin holes to allow mounting it correctly, you'd need to either take the unit apart again or drill another hole in the number wheel.

if you do take it apart, take/post lots of pictures

or put another way, it doesn't matter which way you key the wipers on. If necessary, you reset the machine so the wipers home, then stick the number wheel on appropriately

wrt the wipers stopping before rotation completes, the possibilities are:

1] the clutches are too oily. Did you firmly squeeze/wipe all the surface oil off the leather with a paper towel/rag? You shouldn't see any liquid on the leather surface.

2] the wiper fingers are applying too much pressure on the contact plate and snagging the edge of the rivets. Hopefully you can manually spin the cams and look at the wiper contacts enough to see if that is a problem. If it is, you may be able to adjust the finger tension without taking things apart.

the tension would need to be really high for #2 to be the only problem. Excess wiper tension is usually more of an issue with stepper unit resetting.