The best tip that I received here on ww on making the drive-side crank easier to install is to put it in the freezer for about an hour. This will cause the metal spindle sleeves to contract. Grease the spindle sleeves before you put it in the freezer. Installation will be much easier after these steps.
I would take precaution on using a longer pre-load screw to pull the drive-side crank through. I have read that too much torque can pull the threaded insert out of the spindle.
Agreed, and this was a concern of mine. I used a torque wrech to tighten screw. Torque did not exceed 3 Nm. I was also concerned about the force excerted on the disc so I used a large washer. I found that neither the washer or the torque wrech was required as force excerted was low.