Basicly a cut and shut job - sliced it through the front then kept removing material from underneath until it sat resonably flush, cut the ends off then used a heat gun to mold the ends and underneath the lip.
It's not finished though, the heat gun does do a good job but left a few bumps and dips which need attention, and I still may remove more material to get the front to sit lower.

 

 

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lip3.jpg [ 45.39 KiB | Viewed 120 times ]

lip2.jpg [ 47.41 KiB | Viewed 125 times ]