At the gym I work at, I'm in the process of replacing the campus board. It was clearly slapped together to look cool with no thoughts on using it for training whatsoever.
It had a 5' climbable surface that starts about 4' off the ground (I don't consider the vertical part with no hold climbable surface).
The board was 4' wide (53" actually). It had a line of identical finger boards going up one side and a line of medium sized handmade (no bevel to account for the overhang) medium+ sized rungs. 3 moves and you're done. It was truly a waste.
Fortunately, it rotted out so I am building the new one. I've got the go ahead to extend it up. The overhanging surface will be about 7'6". Still 4' wide due to the constraints of the area I'm building in.
Training wise, what would you suppose would yield the largest gains in climbing performance? H.I.T., Systems Board (is this possible on such a narrow wall), campus boards, other?
My budget is good, I just don't have much space and want to make the most out of this. Remember too, this is Bermuda, very few of the climbers here have an opportunity to get on real rock (aside from some occasional DWS) more than a few times a year.