I think a 6.0 transplant would be very difficult and expen$ive. Wiring harness - electronics, current dash probably wouldn't support inputs and have all the readouts. A 7.3 would be much less difficult but some of the same issues would probably arise in a lesser degree of difficulty
I hate to say it but your best bet is to sell yours and buy a different truck. It will cost you way more to transplant and buying all the parts to make it work. Unless you can buy a wrecked truck cheap and make one truck out of 2.
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