you can use Ichibei, not as good as Kugo ofc but still tank well with all the bonus HP from Ichimonji. There is a guy in my realm like that his Ichibei has an insane amount of HP and with the aid rate from Ichimonji he can take quite the punch
You will need a team that can tank. Not everyone can use Ichimonji for PvP. If that's your all around team, you better have a team that gives def buff. I am not gonna tell you what to use for it, I will let you think about how to build it. Think of the advantage and disadvantage of what Ichimonji gives, and go from there.