hell yeah. The best person to talk to is meady, who has a turbo mk2 astra. You basically shift the radiator over, theres a whole in the subframe where a resonance chamber used to poke through a rubber grommet, you use that to seat the left side of the radiator, then drill another hole for the right hand side grommet.
I got hold of an intercooler from a ford galaxy its a bit bigger than the standard 1 and I mounted it in the bumper I had too hack away some off the bumper too fit it and meshed it over hence I had to get a square number plate and mount it on the side of the bumper lancer style!!! And Im using an 8v rad hope she dont get too warm!!! I am such a cowboy!!! I think it will be ok.