interior color options

this might help you out for color and pattern:

http://www.hamtramck-historical.com/images/dealerships/colorAndTrim/1971/71_Valiant_Duster0003.jpg

this is how the seats should look:

http://www.hamtramck-historical.com/images/dealerships/colorAndTrim/1971/71_Valiant_Duster0002.jpg

sounds like the back is correct, but i could be wrong.
welcome aboard also! sounds like a nice car. post some pics when you get a chance...