The lids for the king and chopped are the same size. The only difference is the holes that are pre drilled to accept the appropriate backrest pad. There should be no reason that you couldn't drill the hole pattern for the wrap around pad from HD. The one thing you would have to do to the pad is have an upholstery shop shorten the bottom of the pad. This is just another option to throw out there. I bought the 2014&up style King TP and I use a chopped pad on it. You are just doing the opposite. Hope this helps!
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