Ive got to say thanks to everyone for your input and help, especially bigskywrx!
so, im going to try to figure out the spring rates on my own. sounds silly to me also, but...tell me if im wrong, please!
spring rates are measured in lbs/in
so if i figure how much weight it takes to compress the spring 1 inch, i should have the spring rate, then take the number i have obtained and compare it with those found here and other sites listing spring rates.
once i get the spring rates, i will be able to make a more educated decision on which strut i want to go with.
Once again, thanks for all the help, and any info regarding which springs i have and how to figure out spring rates on my own with no fancy equipment, would all be much appreciated!