Whack it up on axle stands and get them done all at the same time, including your 'spare'.
That way all will be the same colour shade, including the 'spare' should your curb a rear wheel.
Mike is right, don't risk refurbing one at a time, the colour match will be out most likely.I wouldn't put a rear wheel on the front, tracking, rubbing and suspenasioin issues beckon and make it dangerous.