could i use a powerstering rack

[Talonmotorsport]

You can use a power rack with out the pump and with no oil and in most cases it's a higher ratio than a manual one. How ever I tried this with an escort and caused some argument with the MOT tester, bit like removing the windscreen with a crack in it no screen so can't be tested. I would say drain the oil out but leave some in as lube and block the union holes with proper bolts so it looks the part. The very best of luck with your build and the IVA inspector.