Hi. I'm looking for this vintage lens, the Navitar 18-180mm f/2.5. I know it can be found on ebay (mostly, or use to be), but I was wondering if anyone here had one ready to be sold. In any case, make me an offer. I'm located in Canada, please, your price must include shipping.

Thanks to answer

PS: I'm also interested by the Navitar 16-160mm f2.5.