Don't you give up that easily, if max taught me one thing then it'd be that there's always another way to do it!
Try to select the outline-edges of the hexagons and pentagons, and then apply a chamfer (I don't know what it is called in LW, see the attached image, there's gotta be a tool that does that! (I only selected a few because I'm lazy
)).
After that you'll have neat selections ready to be extruded/bevelled/???. Of course, this is gonna be quite some selecting, but I think it should work
