10 Day Trip - 7 Day JR + what?

I'm going to Japan for 10 days and am wondering what is the best way to get tickets/passes to travel around during that time.

I'm flying in to Narita, then going directly to Tokyo. I'll be there for a few days and then I will be travelling to Osaka, Kyoto, Fukuoka, and then back to Tokyo. I will have 7 calendar days of travelling once I leave Toyko (including that day).

My thought was to get the 7 day JR pass and activate it for the day I leave Tokyo (which will give me a full seven calendar days of travel), however, I am wondering how to handle the travel to and from the airport and around Tokyo while I am there for the first few days.

One option I have considered is the NEX + Suica card round trip. However, I am wondering if it would be better to just get the 14 day JR pass. Or perhaps there is a third option that is even better that I am missing out on.

What's my best option?

Thanks so much.