[StrattonOakmontVP]

Hi, just joined and took action, I went to a major electronics chain today and bought a premium laptop with in-store pickup to try the sealed box method. From what I read they won't even open the brown box if its sealed well. However, I don't mind learning to seal the outside and actual laptop box.

1) Is there a guide or tutorial (paid or free), that teaches me what tools and techniques are best to open this box or more details on the sealed box method? I inserted a pic below
2) I read clay is a good substitute for weight. What are other inexpensive materials that I can buy locally to substitute if I can't find a replica or broken one?
3) Do I need a real hot gun or will a hair dryer work?
4) Razor or a dull blade?