In reality a 6.0 would be a better choice..I'm really easy on my vehicles so i could probably do without head gaskets and studs. I would probably spend the money on an oil cooler and egr delete. It would also get better gas mileage, be a better engine for daily driving, and have a much more reliable trans behind it. With that said my gut says stick with a 7.3 though and it'll hold together for me.
Here's what I'm looking at 2000 f250 lariat 4x4 - Dealer put on the rims and tires, other than it is bone stock grandpa truck without even a fifth wheel and has the stock exhaust still. 170,000 miles though
My dads 6.0 that he bought new hasn't needed anything but a new FICM in almost 70k miles. All of that with a programmer installed the whole time. These things are much better than people think. It's also an 06 and most problems were fixed by then