Thanks, Catman, I sent my e-mail address. I have a pretty good library of wings/racks of all shapes and sizes but getting the tube dimensions is not easy. I have a good local source for tubing once I know what to order. I also found a good source of prebent tube sections with the intention of putting together wings without welding. That dictates the tube sizes so it will not be ideal but should be close. I should be able to report on the results of that experiment in a week or two.