I've been reading about the dragon armors, and I remember being told about bellegars cave in my original playthrough of ego draconis but never getting that far. But I'm really interested in the crystal dragon armors but I'm curious if the evil choices will affect anything beyond the cave?
Also, there are no bonuses for wearing a complete dragon armour set, so if you don't want to wear the crystal cuirass for aesthetic reasons, you can just stick to the bone cuirass (from the battle tower chest), which also gives a +40% HP bonus.