Supplier discount vs reduced price vs both???? You will never know until you strap it on and start getting firm prices from several dealers. Contact most of the "Big 8" Corvette dealers, or, at least several, and get their best deal. You will soon know who is in the business of giving good deals to get units out the door. I'm not in the market now, but my casual observation is that McMulkin might be awfully hard to beat. If low price is you main priority, your local dealer is usually not an option, but who knows?
If you aren't up for the work, time and frustration of the purchasing dance, consider a buyers agent.