To recreate the business model you described, you can follow these steps:

1. Identify your target market: Determine the specific demographic or area you want to serve in Northern NJ. Research the demand for package delivery services in that region to ensure there is a viable market.

2. Set up your warehouse: Utilize your 1500 sqft warehouse space in NJ to store packages. Organize the warehouse efficiently to maximize storage capacity and ease of access for package retrieval.

3. Establish partnerships with online companies: Contact various online retailers or e-commerce platforms to discuss potential partnerships. Negotiate agreements to receive packages from them for storage and distribution. Examples of online companies you can approach include Amazon, eBay, Walmart, or local businesses operating online.

4. Hire drivers: Recruit reliable and responsible drivers who can handle package delivery in the Northern NJ area. Conduct thorough background checks and ensure they have a valid driver's license and appropriate insurance coverage. Provide training on package handling, customer service, and safe driving practices.

5. Develop a delivery infrastructure: Create a system for efficient package delivery. This can include route planning software, GPS tracking for drivers, and a customer service team to handle inquiries and resolve any delivery issues.

6. Market your services: Promote your business to potential customers in Northern NJ. Utilize online advertising, social media platforms, and local marketing strategies to raise awareness about your package delivery services. Consider offering competitive pricing, fast delivery times, and excellent customer service to attract and retain clients.

7. Ensure legal compliance: Familiarize yourself with local laws and regulations related to package storage and delivery services. Obtain any necessary permits or licenses required to operate your business legally.

8. Provide excellent customer service: Focus on delivering a superior customer experience. Timely and accurate package delivery, responsive customer support, and clear communication will help build a positive reputation for your business.

References:
- "How to Start a Package Delivery Service" by Entrepreneur: https://www.entrepreneur.com/article/190460
- "How to Start a Courier Business" by Small Business Trends: https://smallbiztrends.com/2019/03/how-to-start-a-courier-business.html
- "How to Start a Warehouse Business" by Chron: https://smallbusiness.chron.com/start-warehouse-business-16220.html