If you decide to give it a go, be sure to create a build thread. I for one would like to see it done, just for interests sake. If you do have a go be prepared that there will be a lot of custom wiring. It will be a lot cheaper to find a VZ with LS already installed. Your mate fitting the engine and trans will be the easy part. Getting it to run and drive will be whole new ball game. Blokes on here are trying to steer you away because it will likely end in tears as it's massive, what you are suggesting. But if you have plenty of money it could be done.