I assume you have the build sheet as well. The build sheet and original bill of sale is all worth cash when and if you ever sell it. Nice car by the way. Reminds me of my 70 Duster 340. It was Burnt Orange or K5. I had it for 17 years but had to sell it having a family to support but have my Cuda now so I'm one happy guy again. I'll be even happier when I get it out of the garage again for another year of driving.
