65 Cuda wheels..which way to go?

Ok. You've probably heard these questions before..which is why I'm going to you all for the answers.

~my 1965 Cuda needs tires, but they're on the original 13" wheels. Gotta bump up a size or two.

~I wanted to go with 14" wheels and 215/60/14 tires, but 14" sbp wheels, as you know, are tough to come by. WHERE CAN I FIND 'EM?

~IF I find those wheels, would they be big enough for a future disc brake conversion?

~I do have a set of 14 x 4 1/2 steelies..but they're too narrow for the 215/60/14 tires I want. I really like the 215 look, but to keep things simple and affordable, I may go with 205s. Still on the fence here.

~I also have a set of 14 x 6 steelies..but again..wrong bolt pattern. Do you recommend a bolt conversion kit?

OR...should I just go with 15" inch wheels since they're easier to find?

thanks all!