Yeah, I think Bulk Reef Supply is building a pretty good business. I have been meaning to try them out for a while. Their dosing pumps look sweet.
When I re-build my system, I will be doing something similar and actually using rods (fiberglass, acrylic, or carbon fiber) as legs to keep the rock off the bottom by quite a bit. I am contemplating a "zero bottom" tank where you an't actually see the bottom from the viewing pane.