赞比亚采购需求：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 in the process of planning a project that involves grit and I need a 6kW solution to meet our requirements. Could you please provide a detailed quote including the pricing, specifications, and any available options? Additionally, it would be helpful if you could outline the estimated lead time for delivery to Pretoria, South Africa, as well as shipping costs. Also, if there are any recommendations or additional features that could enhance the performance of the unit, I'd love to hear about those. Looking forward to your prompt response so I can move forward with my planning. Thanks!