The main thing that doesn't make sense to me about the cloned letter evidence is that I'd have to believe the forger cloned (copied and pasted) two of the boxes but not the third. Or, to use one of the other examples, the 'A' in one word and the first 'A' but not the second in another, in "STATE OF HAWAII."
The small O's in the headings are also curious. The same two types are repeated over and over, but then a different one is dropped in for no apparent reason, like in the word "for" in box 23. That one is particularly strange, because right next to it is an 'R' that's repeated throughout the document.