Ask around locally. A good muffler shop can make & install your exhaust with their eyes closed. I asked around my town,then went and talked to the owners (Brothers). They actually had a 1951 3100 on the rack when I stopped by.
He did my 50' truck (stock )in 2 hours and they put three mufflers on for me to hear before finally welds..
Good luck.
Support your Local small business.
Todd
