Paul,

Both, Vanagain and Ben's site have some pretty decent cooling hose layouts
to look at.

Vanagain:  http://www.vanagain.com/21lchc.htm

Ben's Place:  http://www.benplace.com/cooling_system_hoses.htm

The chart on Ben's doesn't show the Trans cooler but it can still help you
out a bit. These are what I used to finally figure out my '90 automatic when
I reinstalled the engine.

One note is that I used a different coolant tower than the one you have.
Mine was actually designated as being for manuals - I only did this because
this is how it was when I disassembled everything.

Good luck.

--
Thanks,

Jeff
'90 Carat (Grover)
'86 (We call this one Parts)
'78 Bus (Melissa) Patty's Bus