About the trackpad being not recognised on Macbook, I have been watching tonymacx86 for similar issues and came across :
http://www.tonymacx86.com/threads/solved-trackpad-preference-pane-is-blank.199946/
I think I read someone had tried this already and it didn't work, however I will give it a go tomorrow when home !
Edit - Sadly same result . . .
Interesting read. Unfortunately, I previously tried replacing quite a few files with those from my ElCap clone while using Sierra's PBs and nothing changed. I'm at the point where going back to ElCap would be much more convenient than trying to use Sierra... just to get my trackpad working as it did before. I really liked having the tap, double-tap and tap-and-drag features. Currently, I have to use the option key to right click. That, to me, is very, very awkward and annoying.