Tips for shooting professional POV footage
I wouldn't mount a camera to your head - that might result in a) really nausea-inducingly wobbly footage that's much higher than the average eye-height and b) a sore neck. Instead, I'd go for a shoulder rig (something like this: http://amzn.eu/ixifFeM - DISCLAIMER: I haven't got one of these or used this model so this is not an endorsement, just an example). I've shot a POV film before and this was absolutely the best way we found to do it and gave great results (make sure your operator is of average height, though, otherwise you'll be looking up/down at the scene, unless, of course, that's the look you're going for - don't mean to be mean, just something to consider).

You'll get the camera to eye-height and will have much more stability and the ability to capture some excellent shots without having to stretch up with a gimbal or whatever.

The best thing about this is that you can use whatever body/lens combo you'd like (within reason :P).

Remember, though, that humans do have selective focus so you'll need a focus puller and some way for them to operate.