I only know how to do it for cheap 
Veg room is pretty quiet…
I usually just use double-tube t8, but I like t12 and t5 also. That way I can just add as many as I need, and they are relatively cheap ($20 CDN)
4’x4’ is definitely enough space, but I prefer 4x6 because I have lots of room.
Don’t forget, you will also need somewhere to root-up the 200 clones…
@Viva_Mexico has a more hydroponic style for mothers. It’s very cool and definitely worth a search. (around post 25, you will see some mother plants)