This was my second CB 245, and I intended to modify it to be air-cooled (water cooling is the bane of the original design, in my opinion). I bought it last summer in nearly completed form from another Astromart user, but then changed jobs and haven't had the free time to spend on the project. I literally haven't done a thing with the kit and feel guilty every time I use my other (water-cooled) CB245. My guilt is your gain. <g>
The kit has University Optics parts, instructions for the Low Dark Current modification (and I believe most of the components for the mod). The previous owner estimated that it was ~6 hours from completion (ready to mate the components to the camera head.) Realistically I'd double this time estimate to allow for inventorying the components and double-checking (with Berry's program) the integrity of the existing work. Besides the Cookbook manual, I'll throw in a copy of Berry's book "Astronomical Image Processing" with included AIP 245 software, as well as a Melcor peltier cooling and PC fan/heatsink/thermal paste I intended to use in the air cooling project.
The Cookbook 245 is a great way to get your feet wet in the world of imaging and image processing beyond the level available with a webcam or consumer digital camera, in my opinion.
The original owner had ~$600 invested in the kit; I'd like to net $300, which would include insured shipping in CONUS (non-trivial on this fairly heavy package-- I'm guessing ~$25...). Jim