Odoo 17e Inventory & Accounting Setup

I am running Odoo Online 17 Enterprise and already work comfortably inside the Sales, Purchase and Documents apps. Now I need the Inventory and Accounting modules configured so everything ties together smoothly while I wait for the scheduled move to 19 Enterprise... (Budget: ₹400 - ₹750 INR, Jobs: Accounting, Bank Reconciliation, ERP, Inventory Management, Odoo)