plotting - Color a single contour from a ListContourPlot3D using values from a list

I want to map an electrostatic potential onto a density map.

How can I color a single contour from a ListContourPlot3D using the values from another list?

Make a 3D contour plot from a list of electron density values, of which I only need one contour.

Color the single contour based on the electrostatic potential density at that point. (Need help on this.)

I have this so far:

Den = Import["Density.dat", "Table"]; (* Contains, {x, y, z, Density} pointS *)

EP = Import["ElectrostaticPotential.dat", "Table"]; (* Contains, {x, y, z, EP} point *)

ListContourPlot3D[Den, 

  Contours -> {0.05}, Mesh -> None, 
  ColorFunction -> ColorData[Function[{x, y, z}, Hue[EP]]]]

I can't seem the find the right way to write the ColorFunction. Please help.

Comments

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