Hamburger or somebody use to make a set-up that had a second pick-up fitting in the oil pump cover for one of their oil pans. It had a hose connecting it and the 2nd tube from the pick-up. The primary tube "may" have been solid. But with this and any other custom set-ups, you have to worry about the tube possibly breaking from vibration. I don't remember if it had any kind of support bracket, but a well thought out support bracket would be a good idea anyway.
I believe the Milodon SS pan has a set-up with a bigger feed hole from the cover, but it may go straight down for the rear sump.