Seconding MetalStorm’s comment, this is very satisfying and I still hope to see you decide to make a web version that can integrate with social networks to send globes as Christmas cards. I think you’ve already addressed some of the features that would be nice to have, like the ability to rotate models before placing them. It would also be nice if fences would rotate X and Y automatically to better fit hills, maybe using points on either side of the fence and comparing that to the hill mesh height to decide how to orient itself, if that makes sense. That said, you could ship this as is and the right group would love it I think.