insanetk,
Mounting the 100 was easy. I popped out one of the blind nuts and filled the hole with dowel, moved the new blind nut hole up just a tad from its original location. I used the original mount and have had no problems. You could pop out both blind nuts and move them both up a little, but in my case I didn't need to. I popped out the upper right one if your facing the firewall. I also had to do some dremel tool work around the carb/throttle arm area on the firewall so I could mount the 100 as far back as possible. I really didn't take much time.
There was a thread on how to do this here at RCU, but its like a year old and cant find it.
Any more Questions feel free to ask!
You will be a happy camper with the Saito 100 up front..