let me start by saying, I have no previous experience in having a barrel worked on to install removable chokes....I do know however, that if you were to do it at one of my local gunsmiths it would cost you $160 for the work and three chokes ($90 for one choke tube and the work). A whole new barrel is likely to cost you around $250. IMHO, thats savings! I'd say go for it, it sounds like you have got yourself a great gun. Congratulations!