I replaced my existing outside door handles on my 74 Nova (2 door) with new set of handles from Goodmark. The fit and finish of the Goodmark door handles was
excellent! Handles were sold as a complete set including everything shown in the photos below.
I found the best prices for these handles at RockAuto, but they are also available from most aftermarket auto part suppliers (Summit, Jegs, etc.).
Goodmark Door Handle Set Part # GMK401244068S (fit 68-74 Nova)
NOTE: If you do purchase aftermarket door handles, be sure to use the included hardware to mount them. I believe the new hardware is metric.