I just love the six vs. eight war.
Its your truck, run what makes sense to you in it. My own feeling is that if you're going to run it daily you just might be happier with modern induction and ignition, and while you can do that on a six, modern v-8's already have it.
Some of my trucks have eights and some have sixes. Some are going to change from sixes to eights and none are going to change the other way.
Where were the six lovers when I wanted to sell the 235 out of my '54? It took months to find anyone interested even in having me deliver it. The '54 isn't finished yet, but it will have a small block Chevy V-8 when completed and I'm convinced for the way I want to use it, that's the only reasonable choice.