Engine Guru's needs your help

[4xshort]

If I was in your position this is what I would do. First I would find out whats wrong with the motor in the truck and why it happened. I wouldn't want to go through all this work to have it happen again. After that I would decide which way to go.
No sense trying to stay numbers matching if your block is cracked, if you want more power the fuel injection will need to be upgraded. It would suck to buy a short block and then find out your heads are cracked.
When it comes to engine selection the choices are endless, Talk to your local engine builder or give one a call. They can help you with the right selection, weight of vehicle, type of driving, budget all these factors contribute to proper parts selection.