You deserver a Medal! At first it did not work so i made a fresh install with the provided clover folder, USB and audio is now working properly! Thanks so much!
The only thing is, for the fresh install i had to fiddle around with the clover folder you gave me. I was running into "Error loading kernel cache (0xe)" when trying to boot. I swept out OsxAptioFixDrv-64 with OsxAptioFixDrv2-64 which fixed it. Also keyboard and mouse did not work during install so using newest USBInjectAll fixed that one. I also disabled the Nvidiawebdriver in config.plist and just set nvidiasingle. Finally on the Desktop "everything" worked i tested USB 3.0 Speed and front and back panel audio out. Then i installed EFI Partion on boot drive and rebooted, now im running into "Error loading kernel cache (0xe)" again and can't boot to the desktop. I think with some fiddling around i can make it to boot properly, but maybe you have a solution for that too.
Im so happy right now to know that its possible to make it run! If possible i want to donate!
edit: i updated all kexts except for AppleALC and CodecCommander i hope thats no problem!