I am definitely shooting the billiard on the 2 ball. It's inside the first diamond and I see it as a 97% shot. (If I miss it, I lose the game). I will hit it gently, planning to hit the 15 next, depending on where the 13 and 8 stop. I think my next shot will be to move something to my side and leave the CB on the bottom rail. Ideally, I will move several balls to my side and find a very safe spot for the CB.
I first thought of banking the 10 across and leaving the rock in the middle of the top rail, because I don't think anything goes in his pocket from there. However, he would have an opportunity to make an excellent safe reply, unless he is reluctant to risk the scratch. If he doesn't like that, there's not much for him.