This is essentially where I find myself as well - although there are a another couple kickers still available in this w-i-d-e (and unexciting) tier.
I am leaning Bagley. His per game average is unexciting and the Chargers offense looks to be less exciting this year (certainly it should have less ints!

), but I think they have enough fire power that they might be scoring fgs instead of tds? I fellow can hope, no?
Anyhow, an important tie-breaker for me out of this tier, is that Bagley's bye week is later - week 10. If I must draft an unexciting kicker, I like to draft one with a late bye week and then have all that time to watch kickers and hopefully snatch a better replacement after he has passed his own bye week. I am closing my eyes as I select Bagley.