RE: availability of a 357 rifle
$300 is a more realistic price for a Marlin 1894C.
Every now and then one pops up for less, but you've got to keep a pretty sharp eye out there.
Around the DFW area, finding one at all can be a task; I finally had to special-order one.
Big 5 sportings good stores, if you have one near you, has hardwood-stocked versions that they routinely sell for $299, which is a pretty good deal, in my opinion.