Txurce
Deity
Machu Picchu fills a role no other wonder at that time really does: Boost a land based gold economy. I would say a decent wonder role would be 2 2 1 mountains in the city radius
This approaches what healinbear suggested, with my mountain-factor adjustment. I would say only to crank up the benefits, since by that point in the game, 2f and 2g in a presumably 0h tile isn't that great - especially if there aren't enough mountains nearby. Either more food and gold or 2h would make it pretty desirable.