What would it take to build a cryogenic cooler?

[Shingoshi]

Copelend RF41C1E-CAA-929, 115V

Where did you find that one? I mean I could look. I'm going to look for it now! But if that's available on Ebay, that would be especially nice!

EDIT: I just looked. And Google turns up a blank page with nothing found. Are you sure you have the correct model number? On further examination, the Copeland I listed above as the largest 115v compressor, is simply too heavy for this application. It definitely seems to have a cast-iron frame. That may be expected for industrial applications. But for this one, it's not appropriate.

Shingoshi