How easy is it to replace the front license plate bracket? I'm assuming you just unscrew the screws from the old one and screw the new one back in but since it's just screwed directly into the bumper holes, will the new installation require different size (larger diameter) screws?
Same screws should be fine, just try and find the old threads when you screw them in (turn them backwards slowly until you feel them slip into the old threading).
Yes, be careful, they are just screwed into the plastic bumper-cover. And there are only two. Not very strong.