I went out and grabbed a Thermaltake cooler. Thanks for the replies!
Mmmm. . . . "Frio," "V1" or "Spin Q?" One of those should do, but wish I'd had a chance to throw in about some other options.
On the installation issues, yes -- the cutout in certain case mobo-pans makes that easier. Otherwise, fiddling around with the backplate and something (like flat, plastic rulers) to move it into alignment is possible to avoid removing or loosening the mobo.
I don't fool around with this anymore. I pick the cooler for lowest thermal resistance, look at the specs for height, width, etc. and check against case dimensions, then get it on the mobo before installing latter in the case.
OH! But now, seeking perfection, I find I have to get a thermal-sensor installed at the CPU to use a certain "thermally-adaptive dynamic" fan controller. I'll have to remove the cooler again . . . . first time since I built this thing a few months ago. . . .
Luckily, the backplate is an independently installed item for my NH-D14 . . .