This one was a $500 find. Quite a good value I'd say! After some "light" repairs, and a bunch of cleaning I have been driving it around this week. The SLS works great, trans shifts fine, turbo works and nothing leaks. In the past 2 years, it's had over $5000 worth if repairs, including a total rebuild of the rear end, along with new homokinetic joints, new rear springs, all the wheel bearings, new rear SLS shocks, etc ect.
Rust wise, it's "pretty good" but does have some of the typical W123 Merc. rust spots starting. A little by the jack holes, a little on the driver door bottom, and a few small spots on the pass. side rear fender. Not totally sure what to do with this as I already have 2 Mercedes... but I am leaning toward selling it as it should easily be worth a LOT more than I paid for it, and realistically I was already low on space before I bought this, but the deal was too good to pass up.