Thanks for the question.
Our print vendor scans our 4x5 negatives at 2040ppi using a Hasselblad flextight scanner. Prints are made from the digital file on Illford silver gelatin paper using a chemical process and chemical developing. It's a mix of digital and chemical process.
I'm really really picky about the quality of my prints and was hesitant about any digital intermediate but we had some proofs made and they are exemplary.
Thanks again for your pledge!