1966 apache bread truck (all fiberglass on a p30)

1966 APACHE BREAD TRUCK
I was told that it was made specifically for the webber bread company.It is a total fiberglass body. I found the craziest truck and bought it.It looks like a u.p.s truck(but different) and it has a 292 in it. the truck runs great ON PROPANE.I can not find anything that it looks like or really even sounds like.I found a pic of a shell of the same model but it was very old and was not ever gonna run again.the truck is my favorite thing I have ever owned,but I can find no history on it.It was also owned and lived in by the famous tattooed man at the coney island freak show,Somehow I think that makes  it  historic but that could be my obsession. Thank you for your patience. if anyone knows where to start looking for history af apache please