If you have the houserule that you can't take actions from future passes to full defense, that just makes full defense an even worse idea than it already is (right now, it is a very niche move).
Again, unless you have houserules, you can use Unarmed to defend against swords and whips and stuff just fine; presumably you do this by stepping inside their reach and blocking their arm or something.
Melee full defense would be Reaction+Unarmed+Gymnastics or Reaction+Unarmed+Unarmed, whichever is better. Melee regular defense is Reaction+Unarmed.
Ranged full defense would be Reaction+Gymnastics, ranged regular defense is Reaction.
If you had Dodge, it would be
Reaction+(Dodge x2 or Unarmed x2, whichever is better), Reaction + (Dodge or Unarmed, whichever is better), Reaction, and Reaction+Dodge, respectively.