I'm considering fitting new/replacement wings to my 1987 W124.

Is any welding required and what do I have to remove to be able to
install the new panels?

It's a 1987 W124 200, 125K Miles, recently replaced the cam followers
to get rid of the irritating tapping.

Finally learnt from my bother in law how to adjust the brightness of
the dash lights!

Last summer replaced suspension front bushes to get rid of knocking
when going over pot holes,  light control switch to get the fog light
indicator to function.  Electronic bit on the bottom of the carb. and
plug leads to cure mis fire at low revs.

Now runs smoothly and quietly.

TIA