I lost good deal of weight a couple of years ago because of which I had to re-build my wardrode. While I got rid of most of my shirts back then, I did retain a few of the nicer ones. I am now thinking of getting a couple of them altered to fit me. I basically need to have them slimmed. I now wear shirts with a chest of 23 inches (46 inches around) while the shirts that I am looking to get altered are 25 inches (50 inches around) around the chest. Could this level of alteration be done by a tailor easily or would it require a major rework?