300ce questions

Hi all
I went to view a 1988 300ce with 120000 miles on it today. I have a couple of questions, and i'm after some advice.

On starting from cold, i had to turn the key with my foot on the gas for about 5 seconds before it would start. Is that normal, or should it start instantly like a modern car?

The car has also been lowered, and was quite stiff when going over bumps. It also squeaked and clunked when going over the bumps; is this a very bad sign?

There were minor body blemishes. Do these cars rust badly, or are they very soildly built?

The gas pedal had a very long travel, and needed a good shove to get any response. Is this normal? Once you pushed it the car seemed powerful and seemless and was a dream on the motorway.

The aircon takes a few minutes to cool down. Is this normal, or is there likely to be a problem?

There is no obvious service history, but the milage appears genuine. What are the main things i should look out for when i go to check it again.


Thanks in advance