The motherboard and extruder are now in the store as fully assembled boards.
I am in the process of building a makerbot from 'scratch' at the moment, if i hadn't wanted to modify the design i would of gone for the basic kit, nearly everything you in one kit is so much easier than ordering one kit then waiting for another to come in stock, and paying more shipping costs etc. Also i have been waiting a month for part from sdp-si for the drive system
I also think that the full kits get priority over the seperate parts, ie they will make all the part needed for the full kits then the 'spare' kits are put in the store to buy seperately.
If you read the blog or twitter your see they are flat out trying to enough parts made, so if you want to guaranty getting all parts close to when you go back i would get your order in!!