5k hyd. parts- cheapest source?

[Robert W Obrien <rwo@u.arizona.edu>]

Grr. Figured out the hot ign switch problem- the moron didn't de-install
the alarm thoroughly enough before I got it. This left me feeling brave
enough to try again on getting the hydraulic system up to spec. Pump from
a friend's totaled 5ks (free!) went in fine, got steering assist again.
Goood. But the green gold was spraying from the pump-to-bomb hose at the
pipe junction topside. Expected a leak somewheres, but I already did that
one nine months ago. Is there something about that connection I can't
deduce from the Bentley (and the fact that I've done it twice now)? If
not, where do the least expensive good-quality hyd. parts come from? 
Can't keep spending $300 on hoses and $200 on Pentosin a year here. 

TIA,
Rob
1987 5000T, leaky again...