Tinting windows while glass is out?
When I did this years ago in a ‘69 Mustang I did the tint
before I glued the piece of weatherstrip that seals the front and rear glass (picture below points to that seal). Big mistake.
Other than making a helluva mess and having to do it over, the only other issue I had was scratching everything up when I went to install the glass.
In my opinion, install the glass first.