Open Question: How much would insurance be for a manufacturing footwear company?

I am doing a project for school and I need a rough estimate on how much insurance would cost ASAP! Any help would be greatly appreciated. The company is non-profit and manufactures GPS shoes. These shoes are given to hospitals who prescribe the shoes to Alzheimer's patients. Statistically, six out of ten Alzheimer's patients wander away from home and these shoes will help locate those who go missing. I think I will need the amount of insurance for two separate years since the amount of labor in my company significantly decreases after the first year. Information: Buying a building in San Francisco, CA. It is 32,952 sq ft with a 18,375 sq ft parking lot. Purcahsed around $300,000 in capital on various machines from Shoe Systems Plus, Inc. Year 1: Labor = 80 workers ~ wages equaling around $4 million. Year 2: Labor = 32 workers ~ wages equaling around $2 million If you need any other information, please let me know! I have everything else down in the budget sheet so feel free to ask. Labor = full time employees. No contractors or part time employees. List of equipment: SR-250 Shiner with Dust Collection (5) Cam 80 Pro Shoe Stretcher & Lengthener (10) Claes Patching Machine with Motorized Stand (5) INSOLE: Besser Lockstitch McKay (3) INSOLE: Geneva Duo Lockstitch Mckay (3) OUTSOLE: Landis K Stitcher (5) Hercules Classic Pneumatic Shoe Press (3) Supreme Spray Booth - Vented (2) Supreme Heat Activator (2) 5 in 1 Leather Cutter (5) Supreme LB Jack w/6 Lasts (2) Supreme Dowel Puller (3) Supreme Bench Trimmer (3) Supreme Bench Top Groover (5) Supreme Pro (5) Continental 8 Shoe Model Nailer (10) R4 Revolving Eyelet Machine (2)