Need fan for Salamder Rack

I have the Salamander Berlin rack. It is great looking. Hard to find a rack for modern styled home that is enclosed (WAF factor). My Canary mono amps stick out the back so I cannot buy the extended back option with fans to cool them down. Right now I leave the doors open, and there is no back, while I play them and after I turn them off. I am looking for 2 fans, one for each bay that are quite and thermostatically controlled. Any ideas?