Well, the temp continued to rise just like the 622/722, so I added the usb fan to it.
I checked for hot spots with my hand, and the warmest part of the top was the front left (facing the dvr), which makes sense according to the internal pics. The 622/722 had the power supply on that side but more in the rear, the 722k design appears to have moved all of that forward.
Instead of having the fan at the rear left pulling out (like my 622/722), I have it at the front left pulling, which has greatly cooled the top of the cover. Its holding at 113 avg, we'll see what happens.