Need advice on bat infestation remediation

I live in a house built in 1893. There's bats in my attic, have been for the past 2 seasons.

Obviously, this is no bueno. After their migration season passes, I'm going to seal up the areas around damn near the entire house where they're getting in. Winter time so I'm not sweating my ass off in a tyvek suit.

The other issue is cleaning up after them in the attic. Two seasons of them being up there has completely ruined the shredded cotton insulation.

I wanted that basically solid rocket fuel insulation out of there anyway.

I understand that if I hire someone to do this, it'll cost seventeen trillion dollars, so I might as well do it myself.

So what do I do to get rid of this stuff? Regular dumpster? How do I get rid of all of their urine and stuff on the wood? Spray it down with bleach & scrub?

I own a powered air purifying respirator, and had planned to just wear that.