Try Spankys at http://www.spankysparts.com/snowmobile-parts.html
Not sure if they still have them, but I bought coat and bibs a few years ago at haydays from them. One thing to be aware of, the leather used in the Coldwave gets salt / white chalky substance when it drys after getting wet. I have to treat the bibs about three times a riding season to keep them black. Also had to take my bibs in to a leather shop to have seams re-enforced after the first use there were stitches that blew out in the leg. I do not wear them very often any more. I think the leather is too heavy, and not as comfortable as the Vertical Edge coat and bibs I have. I only put on the leather when it is below -15° F.
I have worn the same Coldwave leather bibs for the last ten years with no issues. No salting, whatever that is, no treatment and no seam splitting. I did nothing more than wipe them down from time to time with a wet rag. I decided to go with Klim this year because the leather is heavier than I prefer but more than anything it appears to be shrinking arround my mid section... or something to that effect. There is no doubt that they are extremely warm as well. I hope I can say the same for the new bibs.