Production - 500-ish from a factory source; not a pre-paid order, so more than one distributor received them.
Availability - is where you find them. Made in 2009-10 only AFAIK.
Price - I paid $650 and sold mine for $675, 150 rounds through it. Guy at the range just had to have it.
5 1/2" barrel, eight-shot cylinder individual CNC-drilled charge holes, 48 oz. dry weight, brushed stainless only, catalog #KBN-3275, model #0353. MSRP $681.
The 38-xxxxx serial number range was taken from the 357Magnum range, there is no distinct prefix for the 327FM models.