The only part I haven't been able to find new or aftermarket is the oil slinger for the crank snout ! Ridiculous, I know, but I'm probably going to have to pull a front cover to get a $1.00 part !! LOL - glad I own a harmonic balancer puller..
I could leave it off. Other builders have held that since the front cover design was changed to include a drip lip over the seal that the slinger was no longer requured. Probably true, plus seal materials work better now than they did in 1965..