You can use stuff you may already have on hand such as car polish. I use my Rupes polish (blue and yellow) with the small rupes polisher and then use sealant to protect. No need for anything special or any special kit.
An extra oil sample is a smart idea. This is what I planned to do from this day forward. I always worry the sample my get lost in the mail or lost at the company. I will order some bottles of Amazon.
Send for analysis at 5k miles and then at 7.5k to get a trend. Also, consider sending in sample of the virgin oil that way you can see changes from unused and used oil, particularly the oxidation value. Something to consider.
The point I was making to that poster is what's the difference between 0w and 5w as it relates to poster's questions they are both 30w and that is what most people care about if they will be towing or in hot weather. As long as it's 30w he should be good.