尼日利亚采购需求：控制器逆变器、发电机、水平风力涡轮机、太阳能电池板、垂直风力涡轮机、风力涡轮机玩具

I'm looking for a detailed quotation for a complete wind turbine solution, specifically for both a 20kw and a 30kw model. It's important for me to understand not just the pricing for the turbines themselves but also any additional components or services that might be included in the package. Additionally, please provide the estimated shipping costs to Nigeria, including any potential tariffs or duties that might apply. I would also like to know about the expected delivery timelines and payment terms. This information will help me make an informed decision as I explore options for renewable energy solutions. Thank you!