I personally know that this truck was all original when my brother bought it 25 - 30 years ago.
Does this mean that, due to my neglect in making sure the VIN tag was replaced and my brother's changing the engine without updating the title with the new number has completely denuded this wonderful truck of its value.
in California, the answer is Yes!
Get it back here, get it titled in AZ, sell it, and buy her another in CA. or give her the money.
P.S. Make sure the one you buy in CA. has a good title.