coxy55

hi to everyone im a newby and just recently bought my first voyager its a 2002 CGV LX 2.5 crd which now has a broken cambelt and im wondering if I take it to the garage for repair ( bent valves +) £700 or do I get another engine and drop that in myself £550 right heres my question if I get another engine can I just drop it in and away I go or do I have to have engine programmed to my car