here's my $.02 on these parts....... food for thought.
Keep em. If you trade your truck to a dealer, he could give a rats ass if you have $42,000 in aftermarket shit on your truck (this comes from trading/buying cars for 25 years).
If you sell to an individual, they may/may not want that stuff on it.
I keep what I swap on cars, trucks and bikes.
you will get more selling the car/truck in OEM form and selling the aftermarket stuff separately then you could EVER get for it all bolted to the truck.