Altering this diet

Hey I'm thinking of using the "unofficial how to bulk diet" I'm 6'0 180-186 (depending on time). However I have a couple of questions

1.) Instead of Meal 1, can I use 1 serving of Nlarge 2?

2.) Instead of Meal 5, can I use another serving of Nlarge 2? Or at least something besides the Dextrose?

3.) Instead of the full mayonaise, can I use Miracle Whip, I don't want to eat a lot of fat.

4.)How am I supposed to prepare Meal 2? Should I cook the beef with the vegetables over a burner and then put the cheese on?

Thank you.