Wow! Big thank you man! It works now. I have touchpad and keyboard working. This is very nice!
As last step I wish the WiFi would work, I got a Conceptronic C300RU which has a RT2870 chipset. I am using a package TP-LINK-WIFI-Network-macOS by a chris1111 in github, though I cant seem to disable SIP in the recovery OS. When I disable SIP it comes back on after the reboot. Any hints on this last step?