It would work that way but only for one pyramid structure, there's no way, that I know of anyway, to link all 9 up into one channel that would lead into a heightfield shader node. If there are any ideas how to make that work that'd be nice too.
*Minor edit to the above clip - 'Queens pyramid 4' was a little too big. Reduced the pyramid radius to 20m from the 22.5 it was before.