Are you using canned spray paint? I would seriously not go down this road as it will not last very long, and you will get a much better finish using a compressor and a spray gun. Also, if you are spraying it in cold weather you may get orange peel on the paint, so be careful.
Also when spraying on the lacquer, you are best to give it a few coats but make sure they are thin coats as lacquer is very heavy. Then use 1200 sand paper, then 1500 and for a even smoother finish 2000. Once done you can using a fine compounding paste which will bring the colour out and make it very glossy.