Another vote for G5 as well. They did a flawless job on my first MYP. I went to Extreme Autowerks to put Spectra Photosync on my second one and if I had to do it all over again I'd save the money and go back to G5.
Crystalline 70% for the windshield, def don't do 90% as I've had it in a previous car and the heat rejection isn't noticeable. Your preference for the sides. The 3M Ceramic IR matches the dyed rear windows better than Crystalline as it's more of a charcoal color rather than brownish
Aesthetic: CIR 25% will be close to the back, can put 70 on the back or nothing at all
Visibility: Crystalline 40% for front side windows = great heat rejection with great visibility