this is a very good idea.
could i also connect the fans to my breakout using a 4 pin - 6 pci-e adapter (if there is one)?
i have now also ordered an usb meter

If you are using a server PSU you can. I have one that I bought from Parallelminer or whatever the company is. Mine is powered by a server PSU and a breakout board now as well. I was originally just using a normal PSU for temporary but I had some extra server PSU from gpu mining so I swapped over to that.