You need to talk to a CPA, a financial planner and an estate planner about your situation first.
The discount of KMR to KMP is currently 7.55% down from a little over 10% recently which supports the idea of more selling in KMP and less selling in KMR.
As far as my situation, I've already sold all of my Kinder Morgan securities except a long term core position in KMR. Sold all of my T, half of my VZ and a variety of other stocks to get out of overvalued stocks, book my capital gains and then be able to pick and choose if the market goes down enough.
KMR is down close to $8+ from its high of $78.83 to a recent low of a little under $70. So, I am out $8 on a sizable position. But, I still have not figured out how to pick the top in a stock and don't want to decrease my stock exposure, which is already low, any more.