When I posted to the "hangar" a while back the response was that ( especially years ago)you could use 4130 stock and cut your own threads for drag / anti- drag wires but what about flying wires? Obviously you'll give up some speed due to the drag from not using streamlined wires ( how much speed? 10mph at 140mph?? more?) but you could powdercoat them to match your paint scheme and potentially save maybe a few thousand (?) dollars over using imported stainless streamline flying wires. This may be of benefit to those on a real squeaker budget. Besides when the view over the nose is all terra firma the slower speed buildup due to your increased drag might be comforting!