hydrolic fluid leak

[zep@galactose.mc.duke.edu (Zvi Pasman)]

Hello all:
Car is '86 quantum fwd 5-2.2L.
I have been having a slow leak at the banjo connection near the power
streeing/power brakes pump, at the point where the hose from the
reservoir connects to the pump.  I have been running Pnzoil ATF (I know,
I know, I just didn't know better at the time), which I have been adding
to the resevoir about once a month.  The leak is really slow, I have now used
1 quart in 34 months.
I have not been able to find any more Penzoil ATF (dexron II compatible).
I have also ordered Pentosin from PAP, but the fluid level is now below
the min. mark, at approximately 1/2 the reservoir.  I will not be able to
replace the return line for 2-3 weeks (other commitments).

1.  Should I drive the car the way it is for 2 weeks (brakes and streeing
feel normal)?  Or, should I add some other ATF, or Pentosin, to the existing
fluid?  I don't know what fluids are compatible.

2.  Any advise on replacement of the return hose?  Dealer wanted 
$98.00+tax(!),junk yard wanted $25.  What shims/locking nuts do 
I need to seal the new (or new for me) connection?

Thanks,

Zvi.