Another 318 Build... Surprise!

As far as swapping to a 360...
My concern with the 360 is using my converter, balance issues or what will I need to do.
The lower hose on my radiator is on the DS so I use the 273 water pump. Its a nice stock looking stamped upper aluminum rad and I don't want to buy another one.
The big thing is my custom set up for my AC. Will my 273 crank pulley fit the 360 balancer? and will it line up to the water pump? I really don't want to have to redesign the system.