Thanks fellas...
I agree, this may take more effort to get it to work with the AI.  I admit, this really has a better shot of being used correctly with humans.
  
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		| 2.) That the AI would be willing to end war against a certain gift/tribute. | 
	
 Yes I do recall reading about the original the frustration of the AI never accepting a peace treaty once war is engaged.
I was sort of hoping this may be a work-around to that problem.
  
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		| If you have this treaty no ships will attack even if accidently (warp point) in the same sector, but ships can't enter the sector where the other empire is already present. | 
	
 That is pretty darn close to what I am looking for.  But is it enforceable with human players? 
  
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		| Between humans it would have to be the Honor system. | 
	
 I rather that it would not have to be...
I wish there was a trigger that detected actions during the active treaty of cease-fire:
a. entering a sector where the other empire is already present (current "shared" systems would be a DMZ)
b. attacking the other empire's ships
If you did either of these, you would receive a pop-up warning.  If you went through with it, you would break the treaty.