Hello, do you guys have a recommended pivoting tv mount for above a stone fireplace?

I came across these...

The mantel mount looks nice but the bracket that goes on the stone is massive. I'd never be able to paint the covers to blend with the stone.

mantelmount.com

This OmniMount has a smaller mounting footprint but there are complaints on far out the tv sits off the wall when in its upright position.

http://www.omnimount.com/products/tv_wall_mounts/interactive/play70/

Are there any other models that can lower the TV past the mantel but not stick out so far or have such a large mounting footprint?
My builder is looking to lock down the blocking requirements within the stone but the tech guys are telling me I need to know the exact bracket and TV to determine the ideal location to allow for a different TV in the future as well as not exposing everything in the back when you lower the TV.