If it aint broken do try to fix it..
Use the 1.6mm screw standoff as leverage against to lift the connector.
Im cheap tip #288
use 1oz "solo" cups to put your screws, clips, etc in. The First cup shoud contain the first two screws from the bottom, then stack an empty cup on top, next would be the screw from the battery connector. was rinse repeat. you get the idea. when reassembly time comes around, you would be suprised on how fast things go back together. no second guessing.
//I hate repairing the Iphone 4
If you do have to replace the Camera Ring, I find it much easier to put some double sided 3m on the Display where the ring would go, then put the ring ON the camera, not the display. Also if you need to replace the camera ring, your prob gonna have to replace the ear screen, its easier in the long run just to replace it. Please do not glue either piece on.
Always test the button after replacement, if its not moving freely, loosen both sides or take one screw out, and refit, its like the mute switch, sometime it takes a few times of refitting to get it right. On new cases, especially the OEM kind, you might have to "scrape" a bit of the plastic where the button goes through to get it to move more freely.
What I personally do to remove the chrome bezel, (always remember to remove volume button, , headphone jacks and speaker screens)
I set the empty rearpanel with bexel to be removed, on a terry cloth rag, and use a hot air gun/ hot air rework on the case, low heat, and I aim at the bezel. I heat it up pretty good, but not so hot as to ruin the old case or bezel. the glue will melt. use the terricloth/wash cloth to hold the heated phone backing, insert a metal pry tool (I use an xacto that I have purposley broken the tip of off) wedge it in between the bezel and rear panel. take your time dont force, once its inserted between the bezel and case, use your hands to SLOWLY pull the two apart, add more heat if needed.
//also a roll of 3m or other type of two sided tape will go a long way. no glue needed and if you ever work on the same phone again, it much easier to pull back apart with a heat gun, then messing with super glue.