Have a neighbor finder that can check distance in 3D instead of only in X and Y

In Addition to this I would like to see the NeighborFinder return the Z value of the nearest candidate feature , if that is a line, it would be nice if that Z value were interpolated to the point along the line nearest the base feature. I have a situation where I have readings to the left and right of a linear feature and I can use the NeighborFinter to find the nearest line feature to the point readings, but then I have to feed the lines and points into a SurfaceDraper to get the elevation of the line on the point. It would be nice if the NeighborFinder did that extra step for me without having to generate the surface, it is already returning xy, why not z.