Elka rear dual rate spring set-up w/ spacer

[01 400EXer]

It came off a 250r no-link rear Elka shock. It is dual rate with 2 springs, the plastic seperator, and crossover spacer. I will post more pics tonight. I purchased from Glamis400ex not realizing it would not fit my application. Below is the link to with a picture.

http://www.exriders.com/vbb/showthread.php?s=&threadid=273813&highlight=250R+elka+spring+set%2A

[noreversesucks]

What's the inside diameter, (at the smallest point).
How much?