Change the keyboard of a precision M6300

I odered the "wrong" (localized) keyboard together with M6300. After a few days, I realized that I'd prefer an ASCII keyboard and ordered one as spare part. Now since this case is much stiffer that my previous Inspiron, I'm somewhat reluctant to poke around with a screwdriver in search fr screws and latches. There isn't by chance an illustrated description ? Actually a hint - which screws would be sufficient.

TIA

R.