Oh man, this is great! I've always liked "stock" rally cars, especially M-Bs. Heck, rally was all M-B did for years after the 1955 LeMans disaster.
I really like what you've got going on with this car, black hood and all. I shoulda kept the '73. It was kind of beat, and would have made an excellent rally rat beater. And yeah, W114/W115 are really superb handling cars. I think they feel better than W123, and visibility out of the car is awesome.
Now all you need is a bull bar and roof rack!
PS - Nice job on that front bumper. Looking forward to seeing what you do with the rear.