Gabzor,
I agree with Jim. I have a sign in my garage that says"WARNING, there is nothing more expensive than a cheap Mercedes"
I bought a salvage title 300CE cheap and now have over 10 grand invested. I love the car but Mercedes are special cars with NEEDS.
And answering your question, you will love the 104 engine. But then I have a 119 car also and love it.
I'd start looking at 4 banger Civics and then work your way up.
Anziani
'93 300CE 202K
'95 E420 122K