I'm not going anywhere near the driveway. Future plans involve widening the drive.

As for the second pump, it will be on the other side of the house. There is enough lump in the yard on that side to run a 3" pipe.

I can't do the gabion wall because that involves building a structure on the right of way. It will be in the way of where my neighbor parks now and where I plan on moving the driveway later.