I'll answer my own question
I was able to score a NOS front valance for my 72 challenger. It was pretty pricey but I was running out of time. I paid what they were asking and I got exactly what I paid for. The shipping was actually quicker than advertised, came professionally boxed and the part is in excellent condition, especially considering it is over 40 years old. Exactly what I needed, no repairs needed and very minimal work to get it ready to paint. Communication isn't their best attribute but I did well on this purchase on ebay.