Those five states combined for a raw-vote margin of +10,345,643. A 2024 Republican pickup of the popular vote, along with the presidency, will probably cut those margins down by at least 60 percent.
I don't think it's especially practical to expect a healthy majority of Trump's margin gain to come from just 5 states alone, unless you have reason to believe those particular areas will somehow produce monster R swings while other places remain the same or even shift slightly to the left.
I think the aim of the excersice is to find a way for Trump to win the P.V. by 3 but still lose the E.C.