So the car has started again.
As you can see, there's still some work to do on the interior but it works.
The RB26 works smoothly and the car has done a few kilometers without trouble.
Still has to check oil sensor because the nismo oil temperature on the sub-meter didn't seem to work.
I will test it tomorrow with the OEM gauge.
If i can solve this part, i can finsih the interior and tune the audio parts.
So still some work but i'm relieved that the biggest part is behind me now.