General Question Arrangement of a new ISS

[coffeene]

So I decided to rebuild the ISS from scratch. New senireo. Deleted the stock ISS and have the base building blocks add-on. several questions. How many Docks should I have? How many habitation moduels? and What is a good amount of solar panels? So far I have 6 pieces together as you can see and 4 docking ports. I put the docking ports up first so I can dock multiple ships if needed. Unfortunatly I can only bring up moduels with the XR5, landing is a bit tricky for me on this ship.

incase the image does not show here is a link http://www.flickr.com/photos/49113183@N07/5858186524/