These pics are not showing the actual stripping off of the camera, but show the IR filter removed (1020995a), the camera lens (103001a), the empty slot where i removed the ir filter from (103004a) and a virtual assembly of all the pieces (1030008a).
If you need pics for the actual steps, then i’ll try to take some pics and edit them in order to give you a more detailed process info...sorry for the impossible image names as well 
Anyway, once the bottom screws were taken off the shell, i had to pull the front lens round plastic coming out of the box till it was completely taken apart, then push the main circuit board off the box gently.
Once done this, i took off the other two screws that were holding the lens plastic case against the vertical circuit board. Now i just had to detach the plastic case covering the lens GENTLY using a cutter and bare hands (it’s glued to the small vertical circuit board).
BEWARE, as soon as you detach it, the lens will be exposed to anything, since it will have no protection anymore.
Take out the IR filter from the black cover you just removed and replace it with the filter you prefer.
I’d suggest taking some time for your tests before reassembling the whole thing back.
Hope this helps!
