Thank you very much for the writeup! I only have two additions:
1. Be VERY careful not to over-tighten the bolts on the engine cover. They snap easily.
2. A torque wrench is absolutely necessary for a beginner. They are only $30-50 and will be required for other DIY items. Aluminum heads are soft, and you don't want to risk over-tightening. Then there's the factor of feeling more skilled and mechanic-like for using one
Beginners- they are very easy to use; don't be dissuaded!
The discussion on anti-seize is good, as I did not use any the last time I changed spark plugs. Overall great job, and I'm sure many on the forum appreciate a step-by-step DIY guide. Spark plugs were the first maintenance item I tackled solely with forum guidance.