I don't know why my remote fill idea will not work, for one you don't add oil very often and a 3/8" line might be slow at oil change time but I think it would work.
Additional thoughts are to tap a fitting into the top of the remote reservoir with a vacuum line to the manifold with a PCV valve..the reservoir could be "packed" with very coarse stainless steel wool as a condensor for oil vapor which would drain back to the pan. I already have one of these units for a remote power steering reservoir so a matching one on the other side would not look out of place.
Braided lines and fittings would look race.
Still just thinking and open to ideas....