I use an english "Ademco" hot mountiing press with a 21" x 25" platen which I bought second hand on E-bay, theproblem that it is hugh and weighs about 350 lbs so I have to keep it in the garage.
I also cut my own masks on a uk cutting device and although it is time consuming I get exactly what I want when I want it. I am retired so time is not a problem