By the sound of it you should do fine, I grow lowryder in a 1mX1mX1m and use 2X200w CFL's so I shouldn't see you having any problems. I do hope you have some kind of ventilation fan.
As for how many you should grow it depends on if you have any experience. My guess is it's your 1st grow so I'd start with 2. If all goes OK and you don't kill em you can just plant one 4 weeks later and just keep doing that till all the seeds are done. Make for a nice harvest every 4 weeks.
Lights are an issue and I start all my plants on blue light swapping over to red only when I see signs of sex. But then you can start them off with red if that's all you have, they just might be a lil small.
Check out my grow
AK47 X Blueberry Auto F1 + LR #2 all auto flowering and should have some dieselryder after this grow.
Good Luck.