Those are great batteries (20a, 20a and 25a) so you're good there.
It's very hard for me to suggest a coil because the variables and preferences of airflow, coil position and wicking are highly individual. You should experiment and find what works for you. What's important is you take note of the first sentence in my last post.
Resistance is unimportant. Build for maximum surface area and minimum mass, try using
steam-engine to model your build paying attention to the heat flux.
You could try some of your 26G 316L SS dual coils at 3mm ID x 12 wraps. Though the Tsunami has a very large chamber and lots of airflow, so it could handle more than 60 watts with this setup.