Inquiry about Custom Refill Vending Machine NEW

We require custom vending machines designed for household cleaning product refills. The equipment must dispense various liquids including white/black/colored laundry detergent, fabric softener, and dishwashing liquid through reusable containers.  
 
Key specifications:  
- Precise volume measurement system  
- Product level monitoring sensors  
- Durable construction for high-frequency usage  
- No integrated payment mechanism required (store register transactions)  
 
Please provide:  
1. Estimated unit cost for small trial order  
2. Minimum order quantity  
3. Standard production timeline  
 
Seeking reliable manufacturer with experience in commercial dispensing solutions.