Don’t know if you guys have tried them, but I ordered 2 sets of painting masks from Czech company Green Strawberry (the guys that do photoetch of Bandai kits). These were for the FO and Imp TIE Fighters. These came in about a week, and I LOVE them.
You get two sets of canopy masks made out of the same stuff as Tamiya tape. Plus you get thicker stickers to mask the solar panels, should you wish to. The canopy masks fit perfectly. I had to fiddle a bit with some (remove and reattach), but the masks didn’t fall apart or lose adhesion. And you always have extras should you need them.
I masked this guy in 20 minutes. I love this company.