Looking for new billet main caps for my 340 block

Professor, Talked to Raymond yesterday at Race Car Engineering .....He states that all their main caps came from a shop out of Ohio
called "Program Engineering" whom they just quit hearing from several years back. His only guess is they closed up for unknown reasons to them.
Raymond also stated that while they still have a few various new main caps for some engines they do not have a different supplier in Program Engineering's place.
News it seems we get all the time. My belief is a person needs to keep digging cause you aint dead yet. I read something once that stated
"You only fail when you quit trying" ... Appreciate your help sir along with others. Texas Red