Just crimp it on. That's what I do when I make furnaces in the lab. It works fine. While my furnaces often fail, the crimp is never the failure mechanism. As long as the crimps are steel, they won't melt. Alternatively, high temp solder. Just make sure the melting point is above how hot the coil gets (obviously).
As for a torch, you can buy small butane torches (for cheaper than $75), and all of the stuff surrounding the element is heat resistant, so you don't have to worry about melting anything else.