I would buy all three lightships at that price and alternately display them if you only have the physical room for one. If the shp is willing to sell them at half off then he is breaking even on what he has invested. I'd gamble and offer him 60%off and tell him you will take all three. Then you will have the complete set minus The Columbia(my least favorite). If you hold to your guns and only buy one then I would go with the Portsmouth(I like the hull style the best).

Rich