remove heat?? yes or no opinions

I am building a 72 dart swinger, years ago the heater core leaked, once I got it out I said screw it this is a summer car now, and removed everything I now have a set of gauges where the heater controls were.but now I am back to building it again I have been thinking about the defroster thing. no matter what you do KEEP the heater box and controls. I am having a hard time finding a good set. you might change your mind. I did