The S/C at the show sounded like a great shooter at a good price. As consolation, the stock was most likely a Remington with the triangle sub stamp, S/C has a diamond sub stamp.
A loose S/C stock is an expensive and scarce item. The rifle was probably rebuilt with mixed parts. A replacement C stock would have made that your new favorite shooter.
A3s are rugged and reliable, despite the reduced machining, but I agree the 03 is a work of art.
So, as said before, it's all what you want from an '03 type. Bet you end up with several, enjoy!