Re: New here, have a few questions
Sounds like you are off to a good start. I'm not going to tell you what to get but just to give you a few things to think about. This won't be your last project so don't get caught up in makeing too powerful of a rig. It will be easier and less expensive to shoot that way. It really does not take much to kill deer at 500-600 yards. A 243AI for example, would be more than enough for those type of shots. If you plan on using this for elk at those ranges than it would be considered light duty and something like the 7mmWSM you mentioned would be a better option. One very important thing to remember is not to skimp on the scope. I nice scope will be well worth the money especially if it is your parents money.
Good luck with the project.