Grez,
You have done a terrific job rejuvinating your coupe. I like the period look of your wide whitewalls, regardless as to whether they are correct or not. Us 111 owners are a little prejudice in that we think our coupes or cabriolets are the most beautiful of the MBZ designs since the 60's era. Since you are soliciting recommendations, I suggest relocating your battery to the left spare tire well. It will clean up your engine compartment and allow easier maintenance access to the left side of your engine (Injection pump, power steering, oil filter, fuel filter, etc). If that interests you, email me with your email addres for pictures of my conversion. You can see a sample at thread:
108 chassis body work question.
Gregg