The canon P is not similar in disassembly as with the VT. I tried with with these service manuals and it is a different build. Search apug for my top plate removal instructions i wrote a while back as i had to do it on a VIT. It has photos and tips for things that might not be obvious at first look. Get a good set of correctly sized screw drivers for the set screws or you will strip them and make it impossible to dissemble not sure you can even drill out such a small screw if you do strip them. Good luck