It might be a bit pricey to do that I recommend getting a scalpel there only like 20-30 at most and a metal ruler. I'll upload a few pictures of my one later, also if you have some trouble fitting the pieces after you have the correct size I found separating the keypad and the 18 macro keys works well. Use glue if you want the paper to stick to the keyboard base well, also go for a thicker paper so it is more reflective