You may find a philips screwdriver about the same size useful to pry the home bar from the sides of the screen, remember that little force is required but it can be niggly. If you remove the broken one first then that is your practice before taking out the good one, handy
Be gentle with the ribbon cables and not forcing in too hard, they will go in when they are ready. Again, you may practice on the broken one if you have difficulty.
In terms of the psp, the small left clip flips up southwards, the wide right one flips north.
Hold it around the edges. Keep it face up when putting down somewhere. If you can do this in a kitchen thats ideal because dust tends to be minimal but anywhere you do this a wiped-down clean table will reduce chance of dust and make working easier overall. Have a clean soft lint-free cloth e.g. a glasses cloth handy because there will likely be odd particles that will land on the screen and as you are about to put the faceplate on you can spot check for them and LIGHTLY brush them to the nearest side. They may reappear some more but just do til you get best possible or whats good for you.
Good luck
