For a Model 19, with a 6" barrel, you can expect to pay $550, and upward.
For a Model 27, with a 6" barrel, you can expect to pay $700, and upward.
Your 95% criterion is setting the minimum you'll have to pay. Generally, the Model 27's will come with the Presentation case, and that keeps the prices up. The Model 19's with 6" barrels are less common than the 4" variety, but they generally cost a bit less. They're just not as popular.
There are Model 586's out there with 6" barrels, and they'll generally cost a bit less. They have the same stock size as the K frame. However, the beefed up L frame will handle any .357 magnum out there without the risk of flame-cut top straps, eroded forcing cones, and end shake that K frames can develop when shooting high velocity, light weight (125gr and less) loads.
For a Model 27, with a 6" barrel, you can expect to pay $700, and upward.
Your 95% criterion is setting the minimum you'll have to pay. Generally, the Model 27's will come with the Presentation case, and that keeps the prices up. The Model 19's with 6" barrels are less common than the 4" variety, but they generally cost a bit less. They're just not as popular.
There are Model 586's out there with 6" barrels, and they'll generally cost a bit less. They have the same stock size as the K frame. However, the beefed up L frame will handle any .357 magnum out there without the risk of flame-cut top straps, eroded forcing cones, and end shake that K frames can develop when shooting high velocity, light weight (125gr and less) loads.