Big block A-body headers

Im building a 1972 Plymouth Duster. It has a 383 and im having some problems finding a set of headers that i can afford. Summit has fenderwells for $530 that ive been looking at for a while now but i hate to spend that much. I found a set last night on summit, there full length so im not sure they will fit. The parts page set a body car but it didnt have my car listed. Can anybody help me out?

http://www.summitracing.com/parts/BI...ry=Liter%7c6.3

heres the URL to the full lengths i mentioned.