Arseen, I am working on the NTSC-U horizontal retail right now............front cover first, so do you want that once Im done with it (probably later this evening) so you can incorporate it into your vertical here?
Will save you the time of cleaning it all up and what not.........unless you dont trust me that is! lol, either way, it will be at the very least a good start for you to get this properly NTSC'ised.

Ps: Just realised the game logo is A LOT more elaborate and detailed on the one I have right now, so you might want to cease fire on your one here as I assume it will drive you nuts having a near perfect NTSC-U cover apart from the PAL logo!

Obviously, I am cleaning that up too, so you should just be able to lift it straight out and switch it over if you want too.