Unfortunately I don't have any photos of mine (ALH/Toyota LJ78), but for the heater core I tee'd into the two hoses running to the oil cooler and capped the extra port on the back of the cylinder head. I get hot air within a few minutes of driving, and haver a temperature probe on the coolant exiting the head. The hottest I see is 195ºF occasionally.
I'm running ATF in my power steering system. I haven't had it on the road long, so time will tell, but its fine so far.
Regarding transmissions: If you can lay your hands on a 1996+ R150f there is a factory Toyota 5th gear set that drops right in and nets a 0.69:1 overdrive ratio. With 4.88 gears and 32" tires I am running 70mph at 2500rpm instead of nearly 3000rpm. Last I checked the gears were a little over $300.