I had a look at Canadian Tire today, and they stock a variety of sizes including 3-pack fondue-size ($5.99). But the fuel itself is worth a fraction of that. There has to be a better price, probably through restaurant supply outfits since that's the primary market. Assuming it is worth buying.
As for health effects, it's hard to say since the manufacturer will only send MSDSs if you fill out a form and request it. Probably trying to protect their formula, which any decent lab could determine in a flash. The can labels make it clear that the product is highly poisonous and flammable without details (that I could see).
It's worth noting that there isn't really any benign stove fuel, though denatured ethanol is probably comes closest. Hydrocarbon skin contact, vapour, or ingestion is not terribly good for you. Glycols generally need to be swallowed to do harm, though the harm is significant. Methanol (methyl hydrate) is potentially the trickiest to handle since it is dangerous if absorbed through skin, inhaled as vapour, or ingested. Lesson: don't drink, sniff, or wash hands with your stove fuel.