Comment: Still at the prototype Stage? (Score 4, Informative) 74
They're a bit late then. There are already several kits out there - both breadboard and protoboard with solder holes in them. Get with the times!
Try this: http://shop.ciseco.co.uk/slice-of-pi/
Or this: http://www.skpang.co.uk/catalog/raspberry-pi-cover-with-breadboard-area-red-p-1071.html
etc. I currently have the SKPang one for my Pi.