Stick to your plan. Your imagination and excitement is producing some scope creep. I started out a bit ago putting four seeds in four different pots. Now i have one plant, the other 3 didn't germinate. I don't know i would have done if they had.
I started in a left over christmas storage container, and within a month my baby outgrew that. now i have her in a 2x2x6 growtent with a CFL halo over her head. I understand you wanting to make sure you get atleast one fem, but remember why you're doing this first round: xp.
So many things can go wrong. With my first baby, i nearly burned her to death. I didn't pay close enough attention and the temps in the space jumped past 100(f) in a period of six hours. she recovered though.
IMHO, once i am ready to ask questions like 'how long' or 'how much', i'll be able to answer them myself; and that's the best part.