This is what I used for guide pin removal...I have pics here in the article:
http://www.w124-zone.com/articles.php?article_id=36
What gasket are you using? Victor-Reinz?
If so...just my input...I did HG job in 2009...after 10k miles it started leaking rear side of the head for no reason -- I was meticulous the first time including getting the head skimmed + rebuilt. Replaced gasket 2nd time around in december, but this time I used 70nm torque + 2x90deg that the HG manual states rather than 55nm MB says. Not sure if it makes a difference, but wanted to give you food for thought.