Would you consider OTR? I was checking out Loro Piana, Cucinelli, et al at my local posh shop and all their coats this year seem to have removable linings.
Otherwise, given your temperatures, I'd suggest shearling.
I bought a pair of KMW jeans recently, and in the process looked at those that are being offered on eBay for $50.
At that price, I had to ask, are they fakes? They look it to me, but I'm no expert. Can anyone here explain how to tell the genuine article from the counterfeit?