Miguel:
What equipment you can (and can't get away with) will depend on the amount of production you want to do and what the end product is.
Roasting - you can use any oven, and a comal (a flat steel plate over a fire) is traditional.
Cracking - I've never heard of anyone using a frying pan to crack. If you're making small amounts you can hand peel the whole beans while they are still warm.
Winnow - you can use a hair dryer or you can winnow traditionally by putting the nib/shell into a something that look likes a wok and toss.
You can pre-grind (sort of) in a food processor or coffee grinder. You cannot refine or conche in either of those devices. What you will end up with is a very coarse paste.
You can use the microwave to melt the chocolate, but you will need to know how to hand-temper the chocolate (on a slab).
All in all, you might be able to make chocolate balls for drinking on a small scale this way but you won't be able to make a smooth, creamy, chocolate without investing more in equipment.
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@DiscoverChoc