Last bunch of part we got in I have 7 sets of Bitubo rear shocks at 13.5" $250 for the pair. Cheaper than Progressives, fully adjustable. Originally for Cal 1100 but will work on most all 1000 and 1100 Californias up to 2004.
http://www.harpermoto.com/rear-shock-c-30550260.html