Amazon FBA seller questions

I have been selling online since 2002 on my own websites. Now I want to add sales on Amazon FBA, but I have some questions that I'd rather get straight answers to instead of watching more hours of videos hunting for the answers. I even contacted a "Amazon FBA Coaching" service and wasted more time being qualified and still don't know what they would charge to "consult" with me so I thought maybe someone on the WF knows FBA.

I sell digital craft products online. They are sewing patterns created by my wife and some artists we hire to work with her. Her patterns can be distributed on CD as well as just downloads from our website and I see some of my competitors selling their CD's on Amazon. I am looking to get into that market also in order to reach new customers and add another revenue stream.

Question 1: I am using Kunaki to manufacture my CD's and put them into cases, bar code and shrink wrap them ready to shipment to the Amazon warehouse. Since I am the original manufacturer, will I get banned by Amazon if there is an advertisement ON THE INSIDE FLAP of my DVD case? It can not be seen unless you open the case and it is simply an invitation to join my newsletter.

Question 2: I make how-to videos and was going to distribute them on Amazon but because they are VIDEOS the said no - they are gated items. Even though the videos are produced by me, I can't get them through the gate and decided to not sell my videos after all, just my patterns on CD instead. My question is, does Amazon similar policies blocking data CD sales of craft patterns that my company created?

Question 3: As far as I can tell, the FBA fees on a $10 sale are about $6. ( DVD case with data CD inside ) Is that a good estimate of fees or am I missing something?

Thanks to anyone who can answer.

Larry