also I feel anything single stage is gonna have a tough time on modern cpu packages. if they aren't tuned and maintained properly especially so.
Also this is going to be a game of patience. phase change hasnt been popular for quite a few years now, and even when it was, it was EXPENSIVE, and between shipping, damage, gas fees. a lot of people just threw them out or burried them in their garages
you might have better luck over on xtremesystems
fugger is the go to guy on phase n that's his stomping grounds