I'm looking for a 4" model. Saw one a few years back at a local shop. It was in excellent condition having been carried by a Bird Colonel (therefore not fired much ). The guy was asking $750. I knew nothing back then, and offered $500. He sold it to a collector in California for full price. But, since then I've only seen a couple snub nose Aircrew models. Prices were not too bad. I just want a 4" like I carried. Can someone recommend where I might look for better results?