1966 Dodge Dart Convertible disc brake conversions

Need to know a few things first.
-Do you want to stay with the stock 5x4" bolt circle wheels, or are your changing to the 5x4.5" fullsize bolt circle?
-Are you planning on staying with 14" wheels, or going with 15" or larger wheels? For what it's worth, there are no disc brakes that I know of that will work with the base model 13" wheels...
-Manual or power brakes?
-Ultimate goal for the car: Saturday ice cream cruiser up to full-boogy autocrosser?
All of this will affect which kits you may want to use.