Change in the wind, a downgrade?

[MBDFahrer]

Well everyone, time to break my silence, after a long term of school things are finally slowing down. I brought up the idea of selling my 87 300D to my mechanic. Today, he took it for a drive and said "when do you want me to pay you?"

I find it suprising that he reacted so fast that I don't even have a car to replace it with yet. I found a 87 190D 2.5 in the recycler for $800.

Here's the ad,
"1987 MERCEDES-BENZ 190D Silver color, needs work, transmission is failing, needs an a/c compressor and new suspension. Gray color interior, Upholstery ok, over 300K miles. It was in an accident on driver side but had the door fixed the best possible way. No radio or speakers. Paint ok still glossy, chrome rims."


My other choices were a W123 300D Turbo (would probably do a manual tranny swap one day), or a BMW E30 3 series.

What do you guys think I should do?