As for the clamps when I replaced mine 2 years ago I judt cut them and bought generic hose clamps. Worked perfect as they had a 6mm nut w/ a flat head. But the nut was perfect for a small socket in the tight places.
As for the terminal I am going to route it ontop of the drivers side valve cover as there are mou mounting holes there like the e39.
You can cut it short or route it safely along side the wheelwell/ fender.
And then place it on the valve cover.