Techie -- I have the manual that was passed along with my '94 590. Labeled "Technical Manual" for "590 Rescue" "March 1991" Not sure it's the detail level you're looking for, just an owner's manual really. Applies to misc variants of our boats. Approaching 30 years old, it can be outdated and I know my boat has been modified/refitted over time. Parts list with Zodiac part numbers (not a detailed ipc) and index of suppliers can be helpful. What's missing for me are any drawings of what is in between the deck and the hull. Bit of a mystery to me that I'd be very interested in getting drawings of. If you come up with any info/drawings of that I'd like to get copies. If you want a copy of my manual I can get it to you.