What stock exhaust header will fit?

I'm building a "47 Stude pickup with '68 Dart running gear It has a 318. I'm having trouble fitting the drivers side exhaust header. I grafted the "K" member, steering and front suspension from the Dart into the frame of the Stude truck. The Dart had no power steering and I wanted it so I installed the power steering box and pump. Now I'm trying to find the right header on the drivers side that will fit around the power steering box. I found what I thought would work at a great local Mopar only junk yard (Wild Cat in Sandy, OR) but it won't quite clear the larger steering box. It looks like it needs to be back about two inches farther to clear. Any ideas?