Moving from Auto's to Photo

Hey I'm looking to move from growing auto's to photoperiod strains.
I am planning to grow amnesia haze, lemon haze and Cheese but having only grown auto's I have no idea.

1. What light cycles do these need for vegging and for flowering?
2. Can I use the same light cycle for them all ?
3.how long should I veg them for?
3.How long should I flower them for roughly ?
5.should i crop due to pistil, trichome, hairs ?
Need help with this one I'm afraid.

6 . I can either grow a few different plants or a grow of each strain which would be better ?

I would grow one strain per grow. I veg 24 7 for 3 weeks. Always 12/12 in flower for all strains.

Have to know more about your space etc to say much more. Soil or water?