Material for the flanges and velocity stacks I found on ebay, the mandrel bends were from Wolf Aircraft and the rest was just sheet aluminum I have picked up over the years. I think the grand total for everything was about $200 and then I gave the guy who welded it $120 for the hours/material it took to weld it up (he is a friend so wasn't going to charge me).
The price for me to make one of these for someone else would be more then anyone would be willing to pay.
