Budget: 25000 UAH Deadline: 30 days
I can only suggest creating an order management system for managers that analyzes stock levels at different warehouses, goods in transit, goods in orders, creates both internal orders and orders to suppliers, analyzes sales from previous periods, and REASONABLY suggests the quantity of goods to order in stock. It also takes into account restrictions and reserve stock levels in warehouses. Everything can be done in one document.
Otherwise, I believe you have more ideas that can be worked on and implemented in 1C. UTP, UPP, and UT are good configurations, they can be scaled well and developed as you wish.