Graham Supercharger on a Four Banger

Nephew Phill has a couple Model A projects going One is a 30 coupester and he has added a 31 Deluxe Four door slant cowl and doors. it has a flathead V8 Navarro intake with 49 Meteor Alloy heads  very rare as they only came on Canadian cars for the first three months of 49.

The other will have the Four banger with this Graham supercharger  Fun Times! 

We are concerned about oil feed, how much and what is the min pressure needed? if it is mounted on the left "drivers' side" where is a good place to get oil pressure? how about the drain back to the crank case? Anyone know? or have ideas.

1937 was the first year for left side mount earlier were mounted on the right side, kind of interferes with the intake and exhaust.