I am one of those who likes to keep things original, for me anyways. However, this is one of those upgrades that is considered a good upgrade. I don't think it would affect the resale value of your truck in a negative sense. It might actually add value. It is possible to use the old style valve cover to give it the look of the original motor. However, this upgrade is so popular that I have not seen where someone used the old valve cover to make it look original.
