I have a used oil pan for a 396-427-454 A body (Beaumont, Chevelle etc.) If fits A body 74 or older, Camaro 67 and up, Pickups 74 and older, Acadian/Nova 68 and up, and full size cars 71-74 according to my interchange book.

It's not in new condition, has some little dings and dimples but it certainly looks useable. It could use a good cleaning which you would obviously do with any pan before you install it. 

I tried to get the angles as good as I could to show the condition but if you'd like other pictures let me know. 

The threads for the drain plug are fine and it still appears to be the original plug, it's not an oversize plug.

Best price for a reproduction pan (which is not likely comparable quality) is $100 US so by the time you have one of those it will cost you a minimum of $150 CDN and likely more. 

I would like to get $50 plus actual shipping costs for it.