i am not sure if you can get a diff led and "cram" it in there.
i know the #74 led bulbs are really really cheap.
but the razor blade and 1000 grit will do the trick for cleaning up the screen/film
i got my led for less than a buck from superbrightleds.com
TeamFOCALIZE!// HATCH NATION #45// October '12 ROTM
Track build will commence by Christmas (hopefully)