That's probably what I will end up doing but I'm not going to throw away the copper tubing idea just yet,
Still need to do some testing, to it's credit the copper tubing is held captive in position and the end of the p/u tube is supported, also, the entire modified area is submerged in oil at all times.
I picked up my new 1972 240z today, the car that will be the home for this bmw transplant.
I can't in all good conscience keep modifying my early 1970 matching numbers Z, I'll put it back to stock and pass it on to someone who cares about original stuff. The new 72 Z can then be heavily modified without too many people screaming at me.
Also, I got my oil pan back from Ben the aluminum welder, he did beautiful work.
The first thing I did though was start cutting it up for the final fit testing.