So after a long time a got a very well working electrics.
Thanks to everyone who helped me like EricRacer, Sirnoname, Racingmat, Yokoko, vicpopo etc...
I deicded to use arduinos xpid firmware.
I'm nearly finished with assembling the rig and hope i can finish it inthe next week.
Pictures from controlbox are on the first site.
http://www.x-sim.de/forum/viewtopic.php?f=37&t=1150 Pictures from whole simulater will come soon.