I have most of the parts in my possession, I just ordered the barb and adapter as per the OP, however I just chose the silver adapter (there was no black adapter) and the black barb instead.
I am just missing the hoses, the water pipe, and some hose clamps. Slowly but surely I will be doing this mod. I'll look through the thread shortly, but does anyone know how the oem radiator handles extended road trips and spirited driving with the oil cooler system installed?