I have a 375lb x 2.5" Progressive ti spring for sale.  $80 if you want to come get it from Carlsbad, I'll ship it for $90.  I am firm on price.  I got picky and got a 350lb.  The spring was only used a month or so.  If you are a trusted Foorider you can pay with a check or something.  I don't do paypal. 

Spring Rate: 375lb/in - 65.7N/mm - 6.70Kg/mm
Free Length: 5.85in - 149mm
Travel: 2.50in - 64mm
Inside Diameter: 1.40in - 35.5mm (standard)
Outside Diameter: 2.14in - 54mm
Weight: 0.538lb - 244g (yes, VERY light!)