For a monk, you want a base non-magical class as someone has stated. They should have martial arts, be fast, fairly strong - in some ways fighter strong. Case in point I did a Heroes Unlimited freeform game, but I made a distinction in different strength types. So although the Ancient Master and SpecOps both had Olympic levels of strength, they were geared differently.
Archetypes are essentially different traditions, such as Way of Open Hand, or Way of Serenity. Again they have no real magic, but abilities akin to those from Gurps Martial Arts.
Heroic: This level should have magic, whether they are Iron Fist, or some force wielding mystic type, or elemental magic.