You can try and convert a Revell A340 kit into an A330. I think all that would need to be worked on is to modify the wings, change the engines and cut the fuelselage length down a bit. Modelairliners.com has a Revell A340 for $15.50. I buy some of my model kits from them. You can also take the Ebay approach and wait for someone to sell a kit on the online auction. This will take time and patience, but occasionally you can find some great bargains and some rare model kits.
The Revell Germany 1/144 is a -300 model. It's been released in Airbus House Colors, LTU, Aer Lingus, and SN Brussels liveries. You shouldn't have much of a problem shortening the fuselage and converting it into a -200 model. I believe all of them come with both the GE and PW engines, but somebody else may be able to confirm this.