Good move. Do you Instrument rating so you can start getting the renewals each year. A lot of companies have requirements for so many renewal to join. I got through GA and Regionals.
If you don't have a night rating, don't bother. Do your 5 hours solo in the circuit in a 152 and get on with it. You could do your 50 hrs X-country, night solo and get straight into your IR, knock off a few more hrs and do your CPL flight test. It saves you ca$h. It did for me 12 years ago. You would be more than up to speed for the CPL test.
The cheapest is the best and you can add on later if you wish. Duchess was the cheapest when I done mine and nice to fly.
Enjoy mate, you will learn a lot doing the Instrument Rating.