66 dart gt

If any body can help, I have purchased a nice 66 dart gt that has a 383 with 440 heads stuffed into it. My problem is the headers,parts of them have rusted away and I need new ones. I have talked to TTI and no luck. These were custom made. This is a older hot rod conversion. The inner fenders were not cut out. One welding shop wants $1500.

Marc
downers grove,Ill