You don't really need an "annealing machine" for doing relatively few cases. You might Google "candle method of annealing" and see what comes up. A friend and part-time writer developed it years ago, and quite a few shooters have used it since, with good results.

If it doesn't pop up during your Googling, I can describe it.

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck