Hey , Just posting an updated video of my character walking with these changes

1. I flattened the walkway so I wouldn't have to worry about the feet going through the ground.
2. Constrained the character walk along a path , took a while but figured out how to do this.
3. I still created the walk cycle in place, then moved him along the path.
4. It was fairly easy to adjust the end point of the path until the feet didn't slip too much. Making slow progress

Here is the Video