Sorry not to be more specific but it depends on the jersey. Pretty significant variance in what I'd pay for a new looking authentic vs a heavily used replica. What do you have?
On the random chance somebody else is looking for one and reading this topic there is an XL on ebay right now that I would drown in... good pickup for another flames fan: http://www.ebay.com/itm/CCM-Calgary-...item20df6654a8