Had a long old slog cutting the eye holes out. There's different ways folk approach this but the route i took was to draw in pencil where i figured the cut should go then, using a fresh blade for each eye, continually scored along it until i was through.
Took forever and the temptation to push them out when 3/4 through was great but i stuck with it.
The edges haven't been sanded smooth yet in this pic. And you can see i've drilled out the bolt holes and put one in each side - partly to have an idea how it'd look, but mainly 'cause i were itching to wear it.