You can be a proud owner of the 2000 6 spd for 10,900, but the work it needs will probably keep you from actually taking it anywhere (besides on a trailer) for quite a while and alot of money.
Besides all the panels, there are so many inside panels and supports. With the new C5 Corvette, every piece has something to do with supporting the next piece. It's an engineering marvel, but is very sensitive to any piece getting dislodged from another.
For example, next time you look under the hood of a C5, look to see the inside wheelwell. It's attached to everything it can be and without it, several components and supports would have no place to hang on to, and the next piece would have nothing to hold to, etc, etc.
Hidden damage is the most costly part of an accident (the unknown).
To me, the pictures on both cars showed quite a bit of damage and the price probably matches the extent of the damage. This company does this for a living so I would expect they know the price point (leaving room for negotiation).
Chuck