Scott,

I think it will be difficult to find such an ideal controller with lesse than 2' behind the keys and with no connections or buttons in the central area. This is specially hard with weighted key controllers, that usually need some distance behind the keys in order to simulate the hammer mechanism.

What I do is to reduce as much as I can the vertical distance between the two "floors" in my two tier stand (I loose the access to the controller buttons, but it doesn't matter to me, since I do all the performance control on the module). And the bottom border of the modules stays very close to the keys. This means that viewed from the side, both "boxes" overlap in a distance which is actually the distance behind the keys on the controller. I can also add an inclination (relative to the horizontal) in the upper platform to ease things. Clear enough, even with my limited english?

I will try to post a picture later in the week; it will speak for itself much better than I can do with words...

-- José.