Tattoo Pain Amount

I’m a big music person and I wanted to get a very small (like an inch tall and less than half an inch wide) tattoo of an organ pipe in the general area of my lungs. My possible locations are:

- on my ribs in the front, probably an inch or two under my boob

- on my mid back, next to my spine but not on it

- on the center of my upper stomach, an inch or so below where the sternum ends

- on my upper back, in between my scapula and spine but not on either of them

- on my ribs on the side, again probably an inch or two below my boob

Which would be the least painful and the least prone to stretching? I have an average pain tolerance but I also don’t tend to stop things I’ve started if that’s anything to take into consideration. I know none of these are particularly easy on the pain but still.