Is 12.7 Inches Clearance enough for the future?

JJ1217

Honorable
Hey guys, so I'm pretty much decided between three cases. The Switch 810, the HAF X, and the CM Trooper. I really like the trooper's looks, as well as the HAF X, but the fact that it only has 12.7 inches of VGA room (I'm not sure if cage is removeable to add more length, can someone help me out there), sorta puts me off, while the others have like 13 inches of room. If the cage is removeable to add another inch, then no doubt I'll get it.

I'll also only be air cooling, and I really want a silent build, so eventually I'll be going for Noctua fans when I can afford them.
 

JJ1217

Honorable
How about air cooling wise? I am looking only to air cool, not getting into the watercooling business. I also only expect this to be my only purchase of a case for many years to come.

Thanks for the help.