Square POS Setup for Equipment Rentals

I need an experienced Square specialist to configure a brand-new POS environment for my equipment rental business. The priority is to make day-to-day rentals flow smoothly while keeping tight control over stock, customers, and payments... (Budget: $30 - $250 USD, Jobs: Contracts, Equipment Rental, HTML, Inventory Management, Payment Gateway Integration, Payment Processing, PHP, Point of Sale, Software Architecture, Website Design)