I have all the coilovers shown in the following photos + two more of the red spring versions. They are all approximately 12" eye to eye, around 500lbs-550lbs per inch spring rate, 2 3/4 to 3" of travel, and adjustable for compression/rebound/preload. They each come with the attached parts and you can request something from the photo of the assorted pushrods and triangle linkages first come first serve. To the best of my knowledge they are all in functional condition. $15 each plus shipping.
I know people have been interested in playing with these. I don't know all the possible apps, but these are VERY easy to put in the back of a Miata (If you feel brave enough to find enough spring/shock for the front). They are cheap cheap cheap. Buy them to throw in your aquarium, I don't care, just get them out of my garage!

