On a driver I would have no problem with having a good hose made up locally. The 90/no 90 issue will probably be a cost vs time deal...Simpler to repair with straight ends, and cheaper custom hose with straight as well.
Too many imported oil lines have blown out over the years, with predictable messses, altho most guys have caught it in time to save the motor....And NOS lines would scare me if you could source them. I have seen a lot of jeeps with Aeroquip/Stainless lines, which look out of place but they won't give you any problem for a LONG long time...I suppose if the stainless looks too garish you could wrap it with shrink tubing or wire loom. If you wanted a stock line, I would go with a reputable vendor and ask them if their current stock has ever had a problem like the ones a couple years back did. If it says OMIX or CROWN on the box I wouldn't use it.
I don't believe I could recommend any metal lines in that position, as the vibration is going to crack them eventually. That said, I have steel tubing on my DJ3A as it was the quickest fix when the previous owner's steel line modification cracked and split. I really need to do something about that before I put that one on the road...
