Honestly I doubt in the end it will be as good of a deal with all that electrical problems you’ll run into. My honest opinion would be swap in the 05 pcm, buy a forged 6.1 or 6.4 stroker kit, and build your own. With my build I’m sure the hp is over 500 at the engine, more then a 6.1 has. I bought a used 5.7 block (way cheaper then a 6.1 block) and had all the machine work necessary to freshen up the block done, built the rotating assembly and then simply pulled my motor out, swapped over some parts off my old engine and put the new one in. I had a completely brand new engine with good parts and more hp, without all that major headache of the computer issues from the newer style engines. Again, my opinion but it worked great for me