How hard/expensive would it be to put together a 69 C3 Corvette? And what...

[barcode_the_711th]

...if it was a semi-replica? I saw a C3 Corvette today and while I've always liked the car the flipups (which I've always doubted to be good-looking) are incredible (they sort of look like mini-rally lights and their excessively mechanical look compliments the futuristic exterior). It got me thinking - how much would it cost to restore a C3, or build a replica with benefits (ie: better suspension, maybe a non-steel body, lighter/more modern engine and/or possibly a rotary)?
There are one or two C3 bodies near me, but they're in unknown - and probably bad - shape. Also, if I'd build this semi-replica, I wouldn't have to feel guilty for essentially destroying a 70s car for my own sake.
So basically:
-How much would it cost?
-How hard would it be?
These questions, of course, being asked for this semi-replica project, and then also for a restoration project.
My father has an RX-7 and lately I've been accompanying him during his installations of some somewhat minor parts (bought a new intercooler, for example). I am going to university to begin earning a bachelor of Technology this fall - this might or might not help.

 

[AsYLum dRiVeR]

Corvettes are fiberglas bodied, so the body can be expensive to restore because of the lack of people who can really do well with a glass body. There are lots of upgrades for the running gear, and they can be awesome cars. I don't think that a rotary powered Vette would be too valuable at all, because it is kind of blasphemy. But hey if its for you, do whatever floats your boat.