I think I would agree with Alder. If the cost is really open I'd get a new one from Galazan. It would be perfect and new without ony of the old gun concerns and it would be made to fit you. At the same time an old Sterlingworth will be fine for what you describe. While some here will drool over a fine Sterlingworth they are a bit plain. For some that is the beauty of them. I would buy one in good condition and restore as needed to make it last and fit well without problems in the field if that is your choice. If you buy a graded original you will pay some a big bucks for it as well and if you need to restock or reblue it the purists here will only want to give you half what you paid because it's no longer original. The Galazan guns seen to hold their value fairly well. I haven't seen any $20K guns for half because they are used.
Bill G.