It's not very complicated to do the swap, might take a custom part here or there though.

They make aftermarket motor mount conversion brackets and crossmembers for these swaps. It might need a different oil pan if the truck pan is too large. I think people run the LH8 pan, from like a hummer because it's shaped a little different and doesn't hang down as far.

Then you have the exhaust which will have to be custome made for than likely.