Wheel rims W126 or 560SEC / noise HA

Hey hello, I actually already have a thread looking for Mercedes but no one is trying to do it here. So as I said, I have two questions/problems with which I turn to you and I recently bought a W126 Coupè and there are some “ugly” rims on it and now I have already seen at ebay what is offered there and since I noticed AMG monoblock rims in the following Deminson VA 8.5 x 19 ET46 with 245/35/19 and HA 9.5 x 19 ET46 with 275/30/19 now to my question they go on or not since I actually did not want to change the wheel runs. Can there help me there or rather not???? And now to my second question and that I have an ugly flap at the HA (it is with level) Stabi and anglers as well as shock absorbers I can actually exclude 100% (Schräglenker stop not quite believe but not so that it comes from it) at benz I was told now the container for the level of the right next to I don’t know why or how the rattling is supposed to be inwardly, but don’t know now how it is built up (so if there could be something rattling). Or do you still have a possibility where the HA often knocks out???? Thank you in advance