Kevin, did you know that Justinwrock (W124.090) out here near Sacramento has EAXACTLY the car you want. Only thing is, it is not for sale that I know of.
http://www.peachparts.com/shopforum/member.php?find=lastposter&t=149899
I have seen his 300TE and his ML, so I can tell you, for sure, his cars are as good as yours. This family loves Mercedes, but does NOT buy them brand new, but gets very very good ones and REALLY lokks after them.
They also are enthusiasts like you are, it is kind of a family hobby, and actually they do get newer cars every now and then (though not as often as you.) Their stable is REALLY nice.
Maybe he can be tempted to trade for one of your beauties, but for sure, they haven't had the G wagen THAT long.
On another note, I had dinner with Ernesto (BENZ-LGB) and Carl (cmac2012) just the other day, and as you know, Ernesto's mint signal red '91 300CE was totalled out in a horrendous rear ender on 10/10, and so he is actively looking for a replacement for that car.
Your '92 CE Sportline would be the PERFECT replacement - but for the fact that he really, really wants a RED coupe.
Except for the color, the car would be exactly the right fit for him. Sportlines are the ne plus ultra of those coupes. Maybe you could talk to him. He would be a good guy to give the car a good new home, he is very fussy about the condition of the car, and he knows the CE models well. I told him to try and swap the euro lights out of it he put in it, before the Insurance company tows the wreck away from his driveway, it is officially totalled and the price settled. He is a ready buyer.
And, as we know, your cars are perfect. I would buy one of yours sight unseen, not PPI needed, just knowing you were its keeper. Nothing further in the way of questions would be needed.