Hydraulic pump repairs

[Kneale Brownson <knotnook@traverse.com>]

Anyone have a recommended place to send the hydraulic pump off my '86
5kcstq parts car for rebuilding so I can replace my leaking pump on the '87
5kcstq?   Should I just buy a rebuilt or a (shudder) new one?  The pump on
the '87 has been showing mild  oil-wet discoloration on the front half for
some time with no appreciable loss of oil in the reservoir.   But today I
spotted (no pun intended) actual drips beneath the car and heavy signs of
oozing oil on the pump, while the oil level dropped by a quarter of the
distance between the high and low marks in just a 40-mile drive.

Thanks for suggestions,   Kneale Brownson