I just find it super hard to believe that texts from a far right wing shock jock are going to make the head of the DOJ say
"You know what? We have to raid the former presidents home during an election year based on what this guy said to get back documents that he has had for over a year and a half."
If Trump was going to sell them to say Russia the FBI would not need Texts From Alex Jones to tell them that. They have people who have ears on the group for this kind of thing in a normal case. I am sure they had someone keeping an eye on those channels and looking into that possibility on their own. The FBI and Law enforcement are not dumb. They would have heard of that and been looking into that before seeing some texts.