Cold Mac is unobtainable new, and if you can find one used, you will pay a hefty premium. Probably best to figure out what you wanted most from it and find a substitute for that functionality. CVilization can do a lot but unless you use it daily, you'll need to keep the cheat sheet close at hand. One thing to remember is that any Versio module (including Desmodus) can be flashed with any of the other firmwares, and there is scope for user firmwares as well. Rings (and therefore Rangoon) also has alternate firmwares.