questions about oil cooler - 2.3l 5kq

[geo]

Howdy folks. Sprung a leak in oil cooler. Good news is I can get a used
one for ~75-100 bucks perhaps even including lines. Are they all the
same for this engine? I'm getting conflicting reports from the dealer
parts guy (excellent man) who says there are a couple of different ones.
Bentley only shows one for turbo (which looks just like the one I have)
but Bentley can be deceiving. If the used part doesn't work out, has
anyone had trouble bypassing the cooler with a hose. What kind of oil
pressures are we dealing with here? As most here will know, new parts
for this are heart stopping, faint, fall to the floor kinda prices.

Thanks very much for your consideration.
Geo - at least the weather is warm and I won't freeze my mingers