i have done a diy job on the wheels on my lancia black which were silver and they turned out very good.
i done matt black and then clear laquer to gloss them up, the key to it is prep work.
clean and degrease the hole wheel and tyre wall, then mask up the tyre with masking tape or duck tape, then mark up the wheel with a fine sanding pad to give the primer something to grip to, clean down the wheel again with degreaser and leave to dry, try and spray indoors in a clean dry place and use a face mask for the furmes. i used two coats of primer then two coats of black and two coats of laquer, dont spray to close to the wheels and try keep your hand moving as your spraying, other wise youll get drips or heavy spots, try put the wheels beside a heater to dry the paint after youve finished, dont use to much laquer or they will never dry