I would prioritize 7am like this - VQ first, Remy second, Guardians ILL third (potentially not at all if you get a boarding group and don't want to ride twice.)
Just as a note - you want the earliest boarding group possible, because they are not time specific - so you can go at anytime during the day after your group is called (the app will give you an hour window but it's not enforced).
You'll want to set up your tip board so that Remy is pinned to the top (you can do this any time after midnight). You should be aware that there is a good chance you will only get Remy because TT and Frozen may both be gone by the time you get to make your next pick two hours after park opening. This is what tends to happen on the most crowded days, and NYD will almost certainly be a 10/10. If I were in your position, I'd be mentally prepping myself that
Genie+ was the equivalent of buying an ILL for Remy.
Now, you may be able to get a TT or Frozen by refreshing occasionally after they are sold out, but I wouldn't count on it. You'll want to refresh around :47 past every hour because (supposedly) that's when they drop new availability for LLs at EPCOT if any are going to be dropped.
Guardians ILL does not sell out immediately. It doesn't typically sell out before park open even on the most crowded days. You don't really need to stress about rushing to do this right at 7am - you'll have time. The VQ will likely be gone in a few seconds, though.
Oh, one important thing to note about your plan - it's possible the Remy time you get may be tough to work with your dining reservation. You don't get to choose, you'll get what you get. If you get a time that's too early, you'll need to cancel and rebook - but by the time you do that, the times may be into later evening already. Just something to be aware of.
If that happens and you cannot get a Remy time that works, TT times don't go that quickly... you'll at least be able to get that at a time that should work.