You CAN'T use a JDM harness, regardless of how "hacked" it is. Well, I guess technically you could. . .but it would require you to lengthen or shorten pretty much every wire in the harness. JDM harnesses are pretty much worthless in the states, except the connectors.
You can also use a harness from an F22a Prelude, which might be easier to find than the H22 harness. I don't know if the accord harness will work. Chances are, you could make it work. . .but you are still goning to have to modify a few things.
Try contacting the folks at Import Auto Salvage (
www.importautosalvage.com). They are a great junkyard here on the east cost. You might also try the Honda-Tech.com classifieds.