The 1st batch of TMD fans (silver body) were reported to have a problem with the casing shorting out the innards. I believed they solved it now. You can tell the difference by the colour of the body. Black body means newer version.
Overall, I'm not pleased with any of the fans the YS-Tech makes. My sources says its too noisy for quiet computing. Noisy bearings. Noisy electronics.
I can almost say without a doubt you can maintain your 42C temp with an SK-7 and a Panaflo L1A @ <12V. This pretty gives you the best balance of cooling/noise/cost.
From looking at your rig, I get the idea that you're located in somewhere in BC. If your issue is to try to find something locally, don't bother. The states is the only place where you can get anything high-calibre. If cross-border shipping/brokerage is an issue, you can have it shipped to
Pt. Roberts and pick it up your self.