RE: proshop dilemma
I don't think that it would be a big deal. This shop letting you use the range and giving you a discount on repairs is nice but you know that he is still making money or he wouldn't be doing it for you. If the owner has turned into a friend which it sounds like I wouldn't sweat it. Let him know about it first. Shops sometimes have ways of getting special products they they usually don't carry. I know a shop near me that will swap once and awhile with another shop that is in the same situation that you are in.