not sure, probably not much if i get a decent sized batch..... they will have to be laser cut... probably stainless/aluminium, engraved and then individually stamped, could be brushed, polished or matt, matt will be cheapest. Think it will be 2/3 companies so each plate will probably be 10-15 squid at a guess.... with a decent batch size of 20 or so min.

Aluminium could be anodised so we would have a choice of colours and finishes.

Rob,