Another Header Question

Need some help........here's the deal. I'll be putting a 414 (stroked 340) in my 73 Duster soon. I would really like to run a 1 3/4" primary header but I've seen this discussed on other threads and looks like the possibility may be slim of finding one that will fit. For example, I notice that the #5204 Hooker Super Comps are listed to fit up through 72 and assume they would not work on a 73 due to spool type mount K member. I've seen others say that other brands such as Hedman won't fit with certain oil pans (mine is Milodon low profile). Bottom line.......can someone name a 1 3/4" header that they KNOW will fit a spool type K member with a Milodon low profile oil pan? Also, car is manual steering, and four speed.

Thanks