Who's pre-ordering a Yoga 13?

Hey guys, I'm currently in the process of determining what hardware configuration of the Yoga 13 I want. I believe the only options available for upgrade are:

- i7-3317U instead of i5-3317U

- 256gb SSD instead of 128gb

8gb DDR3 ram instead of 4gb

Unfortunately I can't find pricing for any of these upgrades. What would you guys do? What's worth upgrading? What can I do myself? (ram and SSD maybe?)