My diagrams are in the PS3 and/or 360 Case / Hardware Modding sections, not too difficult to find if ya look for them.
Furthermore, it's not like I'm compensated for every diagram and tutorial I've ever done, and right now I wish this was the case as I've had to devote a lot more time to other things instead of this. In fact I don't get one cent for all the time and effort I've put forth into all of the controller board diagrams I've made up, traced out and info/help I've posted on here that anyone can use at any time, so catching attitude isn't really the best way of going about getting the info you want, but it will guarantee I don't volunteer any of it.
It's way more than just soldering from one board to the other, plus you have the 360 CG board shown there, a right poor choice as getting it in the PS3 controllers 3 COM line layout from the CG one will be a serious mess, but if you believe it's that easy then I look forward to your tutorial on the PS360 when you're all done, or possibly a WIP thread so everyone can see the steps you've taken along the way, and as the info I've provided thus far is inadequate for you, and tracing out the controllers you intend to use yourself and not using any diagrams Ive done up would seem to be the fair way of going about it also, never know, ya may find an easier way of doing it if ya had to do some of the leg work yourself instead of having it right there in 'connect the dots' form, I figured it out, so I know it's not impossible to do, it's just a lot of work that a lot of people don't want to put into it, I did, and I'm honestly not in the mood to spend a month putting it all in an easy to swallow, one size fits all, babysitting mission tutorial.