3000
Self built
2 1000 ballast 600
8 duelbulb flor 400
2 670 cfm fans 300
60 4.5 buckes 240
hose and clamps 100
co2 sys lerge 1500
1/2 cubi yard 50
roughly 3,200 bucks
now with full size plants, 54 oz every 2 months.
That system there selling is cute , nice , and will do the job.
But if your growing for self and cash,
That system is cute, conforting, a no brainer to produce I would guess may be 8 to 10 oz every 2 months