Keeping the engine you have now... There is not going to be an adapter that will make a big hub fit in to the small crankshaft hole because the hole isn't going to be larger with any adapter since that cast iron won't stretch. The only easy way around this is a special made torque convertor but even then it will matter if your new transmission is a lock up or not. Fishy68 is working on this for another member right now.
Another option is you could always have the crankshaft hole redrilled to accept the bigger hub.
Does Victoria have bucket seats? If so you could go with the floor shifter that the 1966 Barracuda used.
