representing the 90-91 bumper way to go neil!
OT: hey neil there are stuff you can buy that will make your moldings black like new! slap some of that stuff on and your car will look that much better! 
Yeah I know of the stuff, but it doesn’t last very long. Thinking of color-matching 
As for tinting curved glass. I put baby powder on the outside of the glass, lay the tint on top and then shrink it with a heat gun. Then cut off the excess. It will now have a curverture close to that off the curved glass/hatch. Wash off the baby powder and proceed as usual. Make sure the car is out of sunlight and the glass is cool before attempting to install any tint. A squeegie, a few drops of dishwashing liquid in a spray bottle, no lint paper towels and sharp razor blades is all you should need. “Tint tip of the day!” Good luck .
Glad to see you’re still around bro 