HI Mate
Myself and Ron have done it yes to my old classic.

Its an art for sure.

Heat gun is a must , you will not get it to fit onto any glass that is curved withoiut one.
Side windows are generaly really easy.

Another must, is to size up and apply the film to the outside of the car first.

Do not think a hairdryer will work, i can tell you after 3 hours of trying , it doesnt, its not hot enough.

If you havnt already, watch some you tube videos on how to do it first.

I hope this helps