I prefer to use Photoshop Elements (I have at home) but on the work PC I have the free Paint.net I just used the clone tool to clone a copy of your plate and bracket a bit closer to the bumper, you can see it was a bit dodge compared to the carpet job I did on your other post. There's a few video's on youtube of photoshop stuff, also magazines and stuff. I'm still learning though.
Nah you're cool! I'm keen to see the result when you get round to it. I think you went for the idea of changing the location to the side for a start. I guess once you're happy with that you can modify the bracket to suit and come up with something you're happy with (mounting it closer to the bumper).