About half the going market. I've got a 39-2 and 439, been on the hunt for a reasonably priced 639 for a long time.

I looked on GunPorker and did not see where any were available nor had sold where the price was still up.

I figured $450.00 or so with the gear.

Typically $700 plus with a few going for ridiculous amounts. Curiously the 439 can still be found somewhat reasonable. The 39-2 has gotten popular in recent years as well.