i like i like.....thats going to produce some monsters if enough wattage is used and spread out ~ garanteed....but i would suggest putting a 2nd nutrient resevoir there, drill a hole in the side but at the bottom of 2 nutrient tubs, then push a hose threw with a rubber seal or sealant (the water will automatically level out to the same level in each of the 2 tubs) so if ones almost full, the other one will be too
This will give you 120-160 litres there to play with instead of just 60-80ltr (depending on the size of your tubs of course)....
mine is a 60ltr tub and i have to top it up every 4-5 days for just 4 plants.

Anyway, keep us updated, and keep the pics commin, i wanna see this grow, its intreaged me.
Take care now, Peace!
Bliss.