I recommend that you keep looking into the international shippers to try to find a better price.
When we moved here from Ontario 4 years ago, we shipped WAY more stuff than that, about 150-200 kg, some of which were also pretty bulky items (it included 4 bikes in two specially-made boxes, plus some other items in a couple of very heavy boxes). An Ontario-based international shipping company did this for about CAD$1000, and friends of ours shipped a similar amount with the same company to Zurich for a similar price a few months before. It wasn't a door-to-door service, which makes it much cheaper - we dropped it off at the shipper's warehouse in Ontario and collected it from Geneva airport 10 days later.
I don't think you could use the same company as we did (
KW International Shipping) to do it in the reverse direction, but there must be something similar available here. If you find anything, then please post it here because someday we'll probably have to make the return journey with even more gear.