I Got The Ektelon!!
Thanks again for all the input.
I picked up the machine last night.
Ektelon Model DE with H upgrade kit.
There are the newer (H) style clamps, longer table and guide bars, tensioner nob with single digit markings, upgraded racquet mounts, and other stuff I probably can't figure out yet. There's even the original manual!
What a great find for just $100.
So, after getting home and unloading the beast I decided to give it a shot on my Head Youtek Speed MP 16x19. Three and a half hours later I finished my first string job. I knew it would take a long time, and I made a few mistakes along the way, but I'm excited to try again and hopefully improve.
I'll take some time today to clean it up a bit, grease the bearings, and try some alcohol along the clamps and gripper (though they all held perfectly on my WeissCannon polyester last night).
You guys rock! Thanks again for the recommendations and guidance.