Cruise control W210 1998 E200 CDI Manual

[Plamii]

Hey guys,please help.I bought an E class 200 cdi manual 5 speed european version 1998 75KW ,but id doesnt have cruise control.
So i did a lot of research and it seems its not so difficult to install it.Since it is a 1998 model Manual,it doesnt have any plug/cable for the cruise control on the left side beneath the steering wheel or behind the cover.Im not sure but i think, that i can plug the cruise control cable in the ignition ,there are 8 pins that the CC can be plugged in,so is my theory correct?? And if yes,then wich CC part.n should I buy?There are so many of them..I read that if its the correct part number of the CC it doesnt even need coding/activation..
So please help me,any advice will help me a lot,thank you all in advance.

These are the pictures from the ignition with 8 pins, (next to the red cables ) and the type of CC that needs to be put there,but im not sure what part number ,or does it matter?

 

[philnewmerc]

These are so cheap (but nice), just buy another and save a big headache

 

[Plamii]

These are so cheap (but nice), just buy another and save a big headache

Thanks,im willing to make it,and above all its just that i love working on these old Mercs

 

[slade1]

How does the cruise control work in hilly roads? Never had cruise with manual box.