Best/ cheapest route for an excursion

We have a 2002 v10 4x4 excursion. It's running fine with only 60000 miles on the dash. I've been told when the motor takes a dump I'm dropping a diesel engine in it. My question is which will be the easiest swap, a 6.0, 7.3, or a cummins. I have a 6.0 and love it. I'm looking for is what will be the most straight forward swap. If I was to buy a ford donor truck with one of these motors would i have everything I need, wiring, mounts, transmission? Really dont even know what trans is in this thing. Just looking for some input, ideas, and past experiences. Thanks y'all.

My buddy has like 220k on his V10 in his EX. I would prob do a cummins.

Yeah, I hear these motors will last. I'm just trying to plan ahead. We do a lot of catering and need the ac in the back and only way we can go bigger is with a van. Suspension and a front end conversion are first on the list.

A 7.3 swap would be a complete bolt in with a donor truck. Pretty sure the 6.0 would also be a straight forward with a donor truck. But the cummims swap could be fairly easy also.

All of them will have different challenges involved, a 12v is simple and straight forward but you have to get everything to work, a 6.0/7.3 should drop right in but you still have to get all the wiring in order and such, I guess it is all in what you want really


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