On my last annual inspection it took me a few hours to take all the screws off the segmented belly. I started to do some research on the one piece belly but as I am sure all of you know it is very expensive. I was wondering if anyone has ever heard of a one piece belly made out of sheet metal. The fiberglass type adds about 10 lbs to the aircraft weight so I started to ask myself, is there anyone who has made an owner produced part out of sheet metal? I was thinking about overlaying some contractor's paper on the belly and drawing the outline as a template in order to transfer into a sheet metal piece. Does anyone know of this owner produced part being created in the past?