I would not recommend the D16y8 aluminum oil pan for 3 reasons:
-The y8 pan drain plug threads are far more likely to strip out (why I switched to y7 steel)
-The y8 pan has less capacity, not much but its about 3.5 qts vs 3.9 qts for y7 steel
-The y8 alum pan weighs a more than the steel, ~9lbs vs ~6lbs
I posted some details in my poorly executed video on youtube:
Nice build by the way, I am almost ready to install my '95 CX trans with the 3.25 final