I have a 69 barracuda that I am putting on dual exhaust. The car was originally a /6 so I have to buy exhaust tips, tip hangers, etc. My dad has a set of exhaust tips from his 69 roadrunner from back in the day. My questions are..

How much different are these tips compared to an A-Body tip? (Mounting tab, dimensions, etc)
Would they work on my cuda?
Will the stock a-body exhaust tip hanger work or a custom on need be made?