in the latest version of the tank most to all of those issues are addressed.
the tank has a channel over/around/by the chain for more than adequate clearance.
i have the taller stand pipe on the return and a shorter one for the feed. (the above pic is older before i added some height to the feed).
there was no bung on the right... welding error.
if there was a way to have the fittings on the right side i would have been all over that. but as it is, to keep the same I.D. as the OE oil lines and fittings on the motor, and be able to run braided hose with AN fittings; thats the only place on this tank they could go. As it is now it is very tight and there is no give or take on the hose length.
My only real issue now is plumbing the case vent back to the tank and where to place it.