What model DC2? Uh...there is only one DC2 that I know of, and that would be the 94-01 Integra GSR and Type-R coupe. Any 94-01 Integra dash should fit in without a ton of modifications, but an RSX dash would probably be quite a bit harder.
Honestly though, why? What's wrong with the Civic dash? This just seems stupid to me...why waste money trying to make the inside of your car look like it's a different car when you could just be spending that on engine, suspension, wheels, whatever?