From what I see in your post, the only issue thus far is expecting 20% down on an undesirable collateral type to most lenders...Cheers!

There ya go...the best choice is as clear as mud :)....... 50% NO and 50% YES.....Personal choice....... my choice would probably be NO.

I've also thought about biting the bullet and installing a concrete driveway so regardless of what floor I have I don't have to worry about as much mud getting tracked through the house by a future tenant.

A drywall patch, mud and repaint will cost your, say, $300 regardless (I know the size of the hole matters, but your rent doesn't).  

I think I can make the mud a little clear.

Any tips on getting through the mud are appreciated.

I did not care for that town or the sea of cortez there.. the tide goes out half a mile and its a mud pit.

They are most ideal when you have a lot of rooms  All you're gonna get is undesirables.

This is where people end up getting in the mud.

Your best bet is to either add another layer of subfloor (the thicker you can go the better but obviously this can cause problems for transition areas that you may not be adding subfloor to), or use either floor leveler or floor mud to help even out the floor.