Since posting I've done some scale graphic mock-ups that I'll post here. Maybe they will be helpful to others wondering what CPU air coolers fit with what I think based on the 'footprint' dimensions should provide 100% RAM and PCIe compatibility and still be decent. These all have different heights so factor in your PC case of chocie too.
ASUS Maximus VII Gene - using a large 2440x2440px image (10px = 1mm) and then re-scaled smaller to 600x600px for web posting. Measured distances from CPU mounting plate center to RAM and PCIe slots. Use these numbers as an estimate. I've seen another unofficial illustration that measured 1/2mm less in both directions.

Here is my #1 choice at the moment. It's good and think it also looks cool like a jet engine -
Cyrorig R1 Universal
Thermalright Archon IB-E X2 - Actually this one overlaps the first RAM slot frame by just a bit. Not sure if the fan would lean into a tall heatsink or not?
Noctua NH-U12S w/extra rear Noctua NH-F12 PWM fan for improved performance

Again my criteria for these coolers was 100% fit without blocking RAM or the primary GPU slot. There are a few others I would love to use but they either block tall memory and/or the top graphics card slot.