Hmm not involved in the business but have heard some infos... Well Cement price fluctuates sooo🤔... Idk its hard to put a definite price on your products. Workers as I heard are often dissapointing but that mostly is because people can't lead their workers properly. You need a place to manufacture... It should be close to a town where many people live but also vast in the amount of land being used🤔... Very contrasting. Other than that let the professionals give you advise... And Good luck