牙买加采购需求：商业金属建筑、钢结构车间、大型金属建筑、金属办公楼、金属预制建筑、钢结构门式框架

I'm looking for a quote on a steel building designed for a warehouse in Kingston, Jamaica. The dimensions I have in mind are a height of 20 feet, a length of 75 feet, and a width of 50 feet. It's essential that the walls are insulated to effectively keep heat out, ensuring a comfortable environment for storage and operations. Additionally, I'd like to have one large shutter measuring 15 feet high by 12 feet wide, along with an access door and ventilation windows to maintain airflow. Please provide details on pricing, timelines, and any available options that meet these specifications. Looking forward to your prompt response!