You may be able to find some CNC round holes punched, but it will be expensive. Can you find any metal screening like they use at dirt pits? Good shit, and very expensive unless you can find some second hand. Strong, and welds good. Put a wanted ad in the paper.
Visit my site atAll errors, brain farts, misspelled words intentional because this computer is set to Spelchek French, and I can't get it to do any different.