I've located an online source for the Sunon CPU Coolers.
These are the same coolers that Prefect reported as a verified
replacement for the Lasagna Cooler from Tennmax. Info is available
The Allied number 997-1045 is the same as the one Prefect mentioned.
Allied does have them in stock. I ordered a number yesterday. They
don'thave mounting clips or a connector, but at less than half the
price of a Lasagna, I can live with that.