I have a comisson to build a large (16′ x 9′) bookcase for a church. The 3/4″ ply shelf spans will be just under 4′ so I need to add a nosing to stiffen them up. I would like to add a profile to them but can’t think of what will be appealing. The nosing will be around 1 1/4″ tall. I usually put a cove or ogee on nosing but at this thickness it looks dispoportioned (is that a word?). Any sugestions.