This thread has already become a thread of differing opinions lol. For instance, I'm my own opinion I dislike a d will probably never run a 3 link wishbone. I would recommend cups if there's even the slightest chance you'll ever go stock again. And if you aren't gonna run anything bigger than 20's or even 22's then you get to keep your bed just the way it is.
if you run small tires you can.