Thanks both! I will have a look whether I will power from the main distribution or whether I will wire directly to the battery. I will need to run some wires inside anyway (for ABS upgrade).
Last Thursday I was able to finish the last hose connections and power up the pump. Turned left and right to fill the steering rack and held it at both ends for 5sec to do a limited pressure test. The pump did sound like it was having a hard time, so I'm sure it has build some pressure. So far, no leaks.
O-rings used on the steering rack are 12.1x1.6mm for the pressure side and 13.5x1.5mm for the return. I'm quite sure the original rings are 12.5x1.5mm on the supply side, but the 1.6 I used should give a bit more compression on the adapters I have.
Blue text are the originals taken from the car, green are the alternatives I bought.
This weekend I started building up the car again. Cooland pipes first and brackets on my car didn't look very nice. Looked at the ones on the wreck and they look so much better. So no painting, just take those. See this picture for the difference:
With quite a bit of fiddling the pipes are in:
