What's the 182 worth an hour? About $300?? may as well bash 40hours in a cheap 152 than waste that amount of money and do the last 10 hours in a 210 or something.
If you plan on instructing then yes do it all in a twin, may only cost you an extra $3000 overall for 50 hours twin when compared to a 182 if you get hold of a cheap duchess.
If you haven't got your night rating, factor that in to the dual component of the CPL hours and fly a bulk of that command time needed at night.