Spring Liners

Well, I decided to look into the option of getting my springs de-arched by 
the local spring shop. They assured me that they would be delighted to do it 
for me (they did a fine job on my springs for my MGB a number of years ago), 
but that they did not have spring liners narrow enough for a Midget (1.5"). 
They will be happy to install them if I can supply the liners, however. 
Anybody have a good source for spring liners?
David Lieb