I've just realized why I find the whole concept of being able to make money building a house so confusing... When I was a kid, you could save money by making your own Halloween costume, or your own Christmas tree ornaments, or whatever. But these days, it's not only easier to buy a bat-man costume from Walmart than it is to construct your own, it's also cheaper. Weird. Of course it's China that's to thank/blame. So if homes were habitually constructed in China and shipped over here, then I guess you couldn't make money by doing that yourself anymore either. Thankfully it seems there's still a bit of a profit margin to be had (hopefully we'll be able to make a house that's worth at least $200,000 more than we pay for it, though of course it'll take 2 years of Stef's time so you have to subtract his missed salary from the equation somewhere along the line. Still, it's a good deal).
I just did a google search to see if, in fact, you can ship homes to Canada from China, and of course you can - Dalian Quacent is pushing some cheap-looking prefab houses that come flat-packed. They look about as nice as a Walmart bat-man outfit.
You can also get the made-in-Canada prefab option that sort of comes from China... If we do run out of money, then this is always an option :)