Thank you both for your input and advice. The article Simon linked to was excellent, even just looking at the pictures.
After thinking it over some more, what I'm looking for is a camera body with working turret, H8. The springs, governors, etc will not be used, as my plan is to engineer a complete digital conversion, while still maintaining the exterior housing and operational lenses. I do not want to destroy the two working units I have, it would be a shame to do so. I would be willing to trade out the H16 Reflex SN128536 for an equivalent H8