HELP! Stuck in Melb with PS rack leak and no Hydraulic Fluid Available.......

[Slant5crazy]

I need to get back to Gippsland early Sunday morning from Mornington before the VW?Audi dealers open again to sell me hydraulic fluid.
Is there anything else that I can use in the power steering/brakes in an '89 Audi 100 that won't wreck the pump seals? Preferably something that I can get from a garage or Supercheap Auto.

Thanks in anticipation,
Chris