Do you really not have dark chocolate bars where you are? It's pretty easy where I'm at to get 70% chocolate bars, and even 80% and 90%. You might have to go to a specialty shop for them but they're just in the grocery store where I'm at.
It's delicious, complex and depending on the origin or blend it can be fruity, dark, earthy, bitter, slightly spicy or taste like coffee. Proper dark chocolate has a kick of caffeine in it too. Hope you get a chance to try it!