Trevor
thanks for posting your build thread.
Awesome to see more father son builds.You will get alot of opinions on a forum like this one. If you lived near me i would give you a used 5.3 LS MOTOR just because. It would cost more to ship than its worth. Maybe someone will chime in from your area with an offer. Just remember its not ALL about the cool car in the end, its about the friendships and experience and time with your dad you will gain in doing this build. take lots of pics and store them safely from a computer crash everytime you download. so keep posting,working hard and enjoy the journey.
Tom