Just did this last night
Bought a roll of 36x84
Measure overall length and width for planning
Just enough to do the sunroof and front two windows without creative layout.
Cut 40" for the sunroof, cut for width. Spare leftover.. maybe use to patch holes or for a slightly lowered 2nd row window.
The remaining 36x45 cut in half is enough for both front windows
2x 10-packs of small rare earth magnets, wrap them with bright painters tape to reduce their strength and help if you drop them into the dirt.
Testing them out this weekend, but mockup in driveway was pretty easy. Secure corners and every 10" or so, tape off the sides, should be quick.