W115 Valve wrench size

[orthotomeo]

I was directed here for answers to my question.

So, '69 220D. I want to do a valve adjustment.
1. What size are the wrenches?
2. Do they need to be offset and bent like my w123 wrenches?
3. Are there any tips you can give regarding doing a valve adjustment on the car (it's my brother's).