you could take out x drake for kuma, he is more useful cause he can also stun and with his df he is a good tank. 

well for upgrades make vivi ss if she is not, and if you use kuma make him sss with his df (if possible). bb won't be that useful since you got marco with better damage.

a good thing to do is make your mihawk faster than kuma so that kuma can benefit from the p. def decrease from mihawk's skill