Bummer. The brown '74 was my vote.

As for 300D W115s, they are great cars too, the only "downside" is that none of them came with manual transmissions (I like a stick shift, myself). A couple of my pals have W115 300Ds and love them. I've driven them and I got to say they have plenty power compared to the 240s I've driven. There's nothing more complex about them, really.

Keep up the hunt! I'll let you know what I find out about that one in ABQ.