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I'm not sure you can trim them and have them look good. That's likely subjective though!
BTW I'm moving this to the correct CUCV Modding forum and merging with the other thread of the same topic.
Compare width and offset of the H2 rims and the stock rims. If the H2/rims sport more backspacing, you will have fitment issues. If you can squeeze them in, it will take a wheel real close to stock size.