If the universe is infinite and homogeneous then that would infer all finite permutations of energy occur, not once but infinitely many times.

That's a big if.

Something can be infinite without having any 1:1 repetition of all or any finite parts. Depends on how homogenous it really is and at what scale. If there are infinite permutations within a finite area, then it won't necessarily repeat ever. There's currently no proof of whether the universe is discreet or continuous.