I love old Bluemels for many reasons, but '
ease of getting a nice fender line' isn't one of them. They either look good and rub, or don't rub and look crooked.
But since I am a member of this forum I feel obligated to try anyway.
My least offensive (and non-rubbing) efforts so far:
Lighter colors can be beautiful, but are even more difficult to work with:
Metal fenders either follow the correct arc or they don't. More work than plastic to mount, but once they're on, they're on: