I think that sounds like a plan with the diversion tactics to explain stuff. Because if it gets out that a wizard caused any of this, the amount of weird might cause mass brain implosion and a media shit storm.
1. Pep's the best person for this.
2. I know you're working with a skeleton crew, but the hold up is that I suggest getting Shuri involved. She can upgrade some of the old Avengers equipment that Pepper and I have been compiling. It's a long list for you to look at before we go dumping it off anywhere. I split things down the middle, so Steve's got access to the other half of what he might need for the Avengers going forward.
Also? Since it looks like the universe has sucked up some people again, I'll step up and help out with the black hat stuff. I make it a point to get nosy in my free time anyway.
3. Good question. Don't know. Not a volcanologist. We'd have to ask Strange about that, but now that you mention it? This is a long list, too. It's kinda weird that it's all at once.