It was bound to happen. Just take a look at what
JG is charging for his pristine W123 cars...makes $20K seem like a bargain.
I purchased my 84 300D Automatic saloon with Sunroof, SLS and Aircon in 2015 for a fraction of what it is worth today (cash offers received for £20K here in the UK). That said, it has been fully mechanically restored by the foremost W123 specialist and magazine featured.