Question for Green House Hardware & Lumber

I am having 8hectare agricultural land situated at Brgy.Pesa in Bongabon Nueva Ecija. I would like to know if you do construction of GREENHOUSE if so, how much is the contract sum labour and materials with necessary fittings for one (1) hectare only. If the proposed 1 hectare will be in success I might extend the size of it in the future.