When I set up my system I will use the following.
This is similar to the oil cooler I already have except the unit I have is a bit smaller. It was purpose built as an auxiliary cooler with thermostatically controlled fan. And can be mounted anywhere.
JEGS Performance Products 60346 JEGS High-Performance Transmission Coolers - Free Shipping on All Orders @ JEGS
The pump I will try out first is actually a fuel pump. The unit already has hydrocarbon-proof seals and will move quite a bit of fluid. It is a rotary vane pump and I know it will work for transmission oil as I used one in a low pressure hydraulic system on an old allis chalmers dozer that had it's pump quit.
I am not sure how hot the fluid will get but if the oil is run through the cooler first I don't think there will be a problem. Also I was thinking of using a variable DC power module like computer fans use. That way the pump motor RPM is in proportion to the temperature of the oil.
http://www.summitracing.com/parts/cr...g6EaAsMo8P8HAQ
Cyruscosmo