Body of an 87 K5 going on the frame of an 86 m1009. Rust is the reason. End goal is a daily driver that can tow a storage trailer, nothing crazy heavy. I'm imagining 12k at the way high end.

I know the bodies are basically the same but I'm looking for input on things I should do while the body is off. I'm heavily considering putting in a Dana 60 and corporate 14 bolt that came from a m1008 truck but not sure if it's worth it for my intentions. If I go that far should I upgrade or change anything? To my knowledge the m1009 is pretty much the same set up as it was when it served.

I would like to keep the electrical related stuff about as simple as it is now. With that in mind, what is worth considering? Imagine money isn't a problem and the only hold back is I'm not making a ridiculously over built monster.