Joe
I don't think the 19s look "dorky" at all. Some people just like smaller wheels that look more original in size but as you know you can not do that with the modern suspension and brakes.
You just need to find the look you want for the car with either modern Vette rims, modern performance look like HRE or Forgeline, or vintage look like Evod Turbine or Torque Thrust style wheels.
Good luck in your search and I look forward to seeing the car when it is done.