Trimming the plexiglas lens took a while but was easy due to some tips I picked up on the Vans Air Force forum. The important one was using an oscillating cutter for the plexiglas. I used my Bosch battery powered unit and it worked great. Very easy to control. I also was careful to keep the plexiglas warm which makes it less prone to cracking. All of this will make me more confident for down the road when I have to cut the very expensive canopy.
Ready to trim. (I found the clamp was not necessary because the oscillating cutter was so easy to control.)