Haha! Nice job, Albert!
I'd love to see how this one compares to the Vetroo V5 TBH, but it does seem like it's not a terrible buy; quite competitive in fact.
That fan though... The plastic used gives me the feeling it will crackle/break rather soon when exposed to heat. I wish you could test that theory, but it gives me that feeling. Maybe I'm wrong. In any case, it's easy to swap if it breaks or isn't enough.
I'm not overly excited how the plastic looks either, but given how poorly plastic conducts electricity if your heatsink fan is getting very hot, you probably have a much bigger problem than a cheap fan!