2018,
As Bigger says, it looks like your anger is getting the better of you. We all understand that, and we all had our periods of absolute rage.
However, there is a very serious thing that you have said which could backfire on you and it is this:
I’ve already put everything on thumb drives which will be dropped off at post office and sent to her siblings and a few close friends as soon as she heads North on Friday
I know why you want to do it, and there is an element of justice to it, but if you do send sexually explicit material to a whole bunch of people you may find yourself being sued by your wife and the intern for REVENGE PORN. Seriously, as much as the pair of them deserve to be named, shamed, and humiliated, the reality of the situation is that you are risking committing an offence by circulating that material.
The other point is, as you have all of that graphic material, why not confront your wife today or tomorrow with a stack of printed highlights (particularly her email about you knowing nothing), and tell her that if she goes on the fake weekend, she will be returning to divorce papers, and everyone she knows being informed about her activities. You do not have to circulate any pictures or videos for that (so no potential for 'revenge porn' charges), but you can describe all of the material that you have. That will be enough for most people, and you are 'safer' from a legal point of view if you do that.
It is possible that you are thinking about a forum member called AmbivalentOne, who confronted his wife with a bunch of printed copies of evidence of her affair that he had found on an old computer. It had quite an impact, and he could not be sued for doing it that way. There is a lesson in that!
Listen, we all want you to get yourself out of infidelity, and many of us may like the idea of a smug cheat getting her comeuppance, but please 2018, DO NOT COMPROMISE YOUR POSITION BY SENDING OUT MATERIAL THAT COULD BE CLASSED AS REVENGE PORN.
If you want to send a mass mail-out message to all the people who need to know, so be it, but stick to a description of the evidence, and maybe even throw in a few choice quotes (like "Ha ha, he has no idea"), but no triple-X pictures or movies.
Also bear in mind that once you circulate triple-X material, you no longer control it, and there will always be a possibility of your kids seeing it. You might not care about that from the point of view of shaming your wife, but think of how horrible it would be for the kids to see stuff like that. Anyone who gets pics or video could keep it for years and show it to them. Why risk that?
The whole point of blowing up the affair is for you to regain control, not lose it by circulating material to a whole bunch of people who can then do anything they want with it. You need to retain control of it.
And as so many people keep saying, CONFRONT HER NOW! Blow their weekend plans off the rails right now. Why let them have a lovely weekend together? That's like a gift to them.