I got a used steering pump from Car Canibal for $100 but additional $20 S&H two years ago (1991 RR-C 160K miles).
Another note: these babies can not be rebuilt, I'm told by Meridian.
http://www.meridianautoparts.com/ They do the best rebuilt for steering boxes using special seals to prevent notorious leaking.
I don't think it was my problem although it was making lots of noise when turning. I do know I had to adjust the backlash (had nothing to do with pump.) via the screw on top of steering box. This was not a noise problem, steering effort inconsistent especially on windy roads.
I would agree / suggest some fluid swap. Use real power steering fluid unless you have some Dextron ATF hanging around (specified in my manual).
Hose also are very high pressure and leak with age. Usually leaking is steering box (RR joke; if not leaking probably empty...) seals. See above for rebuild.
Sorry this is all backwards; first analyze problem carefully.