I've got 2 pairs. Shipping from the US to TO is pretty reasonable for wheels, about $48 USD with tracking. Transit time is about 5 business days, typically. Both pairs are in really good condition. The second set (with the slicks) were only ever used on a 'coffee bike'... I don't think they were ever off road.
XT wheelset #1: XT 737r/738r hubs, Mavic 230 f/r rims, IRC Mythos XC tires, skewers = $130 USD
XT wheelset #2: XT 730f/732r hubs, Mavic 230f/238r rims, Continental Contact semi-slick tires 26*1.75", 8sp cassette = $150 USD