Strangely despite the fact that these parts are made in Germany, they are cheaper in the USA.
So the plan is to have a Steam engine powering the cooling system on my steampunk PC. I did the maths and it won't generate enough power to run the whole PC*. But never expected it to have that much power anyway and this is only the test engine to try out a few things.. like being able to regulate the engine from the PC should be easy with a USB Input Output Interface Board, a controller card, and stepper motors. Call me a "kid" but I love the idea of clicking the mouse and the whistle on the steam engine blowing, or keying in "11" and the engine speeding up. Thinking about it, if I wanted to get really ambitious I could link the regulator to a temperature sensors and the engine could increase the fan speed as the temp rises.
*Guesstimated it by scaling down for the figures I found for a single cylinder double acting reciprocating model steam engine. Bore 19.05 mm, Stroke 19.05 mm. Nominal power output 3.3 watts at 1200 rpm.