Honda GC 160/190

Is anyone able to build a one inch header pipe for these engines? Keeping the pipe close to the block would be better. The stock exhaust is quiet, but isn't the most appealing piece of metal. I have one to copy that someone made for me previously and can be used as a template. With a few mods :( air cleaner, header) they wake right up and sound really cool! It would be great if they could be made with the bung for a screw in Briggs muffler or a clamp on RLV style.