加纳采购需求：温室，温室，玻璃温室，水培，气培水培，冷却风扇

I'm interested in getting a detailed quotation for the construction of a four-acre greenhouse. Could you provide insights on the materials you'll be using, estimated costs, and the timeframe for completion? Additionally, I'd like to know about any customization options available, as well as your recommendations for optimizing the greenhouse environment for maximum efficiency. Please include any relevant specifications or features that would help me make an informed decision. Looking forward to your response!