There are a couple of places that sell parts for the 8790. Try Google'ing "Clevo parts"
. About 80 - 90 % down the page, look under, "Cables: LCD, Drive, Power..." Look for D87P & D870P. They have one listed as in stock & ready to sell at $65.00
The part number on the site is 43-D87P1-011 not the 43-D87P1-010 that you specified. Maybe give them a call.