Just check first to see if the existing outlet (the 6-50 receptacle) can simply be rotated 180 degrees in the same box so the cable no longer covers the 120V outlet. If that can solve the problem, it may even be easier than moving everything to the left, possibly the second option.
Okay, let's all meet over there for dinner and get this job done!
Okay, let's all meet over there for dinner and get this job done!
