Don't underestimate the 02 lens. It's a fine performer when shot wide open or near wide open. If you're not pixel peeping at 100+ percent then it's OK when stopped down too. It flares beautifully which makes it great for artsy shots. Don't be afraid to stop it down to f/8 and point it into the sun with some exposure composition!
7mm_f8_IMGP1955 by
Boris, on Flickr
My vote would be for you to get the 01, 02, 03, 06, and 08 lens. Yes, the 03 is a great lens if you know how to leverage it.
3.2mm_f5.6_IMGP1865 by
Boris, on Flickr
I took that shot through a passenger airplane window. Skip the others unless you are collector and just want to be complete.