How so ? Apparently you’re ok with your toon not having BiS to run keys.
2 items, one of which your monk wouldn’t be able to use since it’s a bow. The other is a ring with very high mastery that requires fire damage to even use its special effect.
430 gear doesn’t exist.
424 is what boss 7 and 8 drop. 421 is much closer to 424 than 304 is to 311.
Considering most guilds going for boss 7 and 8 will be extending for weeks, M+ 421s will be a much easier source of high end gear than farming boss 5 and 6 which if you’re in a CE guild, you won’t see for probably the entire season.