thank you guys, sorry for not answering in time
today i bought cutters, like these, but 450/18 instead of 900/36, whatever that means.
tested it on a rod remaining from the body, and it work so much easier than sawing the rod off, damaging rubber in process (as it needs to be removed from sawing zone). will try easier methods for other bodies.
i think you should, i also cut the flesh under arms - and some from the back part of the neck. KP02 flesh vest is too thick, and his neck doesn't allow MMS238 head to sit straight, it bends forward.
because this is MMS238 head joint:
and this is a head joint that Phicen bodies are designed for:
you have no space in MMS238 head for Phicen neck ball unless you do some cutting. my goal was a) to keep all head electronics intact and b) to try and keep head's ball joint undamaged. my first attempt didn't reach the goal (b), so i'll continue engineering.