Hey Guest!
Martin does have the springs. I purchased mine in 2009 for $250. No shipping charges because they came back with my Frame. He can make them for any height you want.Legal Bill said:I believe Martin Jansen/Jule has rear springs designed to match or improve upon the ride height of the 3000 MKIII. I have no personal experience on this, but others have posted about it.
I too would like to know more about the lowering blocks.