I have some furniture in house that has chrome plated legs. Some water marks, some dirt extra...

1) Which polish will be suitable to bring back the shine? I do have Menzerna SF4000 and HCC 400 with me. Will that be enough or I will need metal polish?
2) Should I clean the chrome plated legs with APC first and them move to polishing?
3) Will I need sealant? I have Collinite 845 and paste wax.