Yes, that's right. Besides, there's also this, which can't be a coincidence.
There are other hints that this is definitely a conspiracy, and we have discussed this many times in this thread.  And like you, I really hope for a truly worthy and profound ending in which this whole massive conspiracy is revealed and shown to everyone. However, I would be glad if there were at least 3, or better yet 4, endings in the main finale.
		 
		
	 
Yes there are many more coincidences and knowledge that characters have I didn't mention. The example you gave is a big one.
 On your first ending scenario, animals can still be on the farm but that doesn't mean they are there to be used to fuck humans. It would still need to look like a farm to the outside world. But yes we need to know definitively what happened to Monica's husband. I want that revelation as much as anyone.
On 2, yep, Monica will end up married to someone in an ending and most likely be a trophy wife with no power in the relationship.
 I've talked about your third variant before. I just don't see anyone who would put their wife through what Monica has been through would want her back. And I couldn't see Monica going back to him after all is said and done.
 All the scenarios you mention could happen I would add the revenge quest as a possible "Hollywood" ending. At the stage that it starts, Monica has not worked as a prostitute yet and has only done up to the Melanie photoshoot. The conspiracy could fall apart when Monica refuses to play along with it. They may give up and hand her life back to her.
 Like you though I find it hard to work out how Monica will get a "Hollywood" ending as of ep5v2. And in my opinion nor should she. Monica by this time is so compromised and has done things that the Monica at the start of ep1 would of never dreamed was possible. I don't mind good or decent endings for Monica just not one where she can go back to her old life as if nothing happened.