how motivated are you? what about doing an auction?
I'm sure a action would start at a price that no one would want to bid at, or a reserve price around where they are trying to sell it now. This seller clearly has a price in their mind and will not sell under that. Which is their right.
I have an idea what I am willing to let it go at. Again... if there are
ANY comparables that sold at 1.2 to 1.5 recently, please let me know. I am always open to negotiation and reasonable offers as stated in the OP.