This is pretty much guaranteed to look crap IMO - if not straight way, then definitely after a while as the paint flakes off.

To do it properly, all surfaces need to be keyed; the SS or galvanising of/on the spokes would require an etch primer, and I think the anodising on hubs and rim would need to be sanded or etched off before etch priming.

And of course the wheels would need to be disassembled. So not too feasible.

If you really have your heart set on a certain colour, your best bet is to order the parts in whatever colours you want after figuring out what length spokes you need for the hubs and rims, figure out how to lace them up (put a drop of oil on the spoke threads), and take them to a shop for tensioning and truing.