ERP Implementation for automotive films distribution business

We are an automotive films distribution company with nationwide distributors and multiple warehouses. We need an experienced ERPNext or Odoo specialist to implement a fully integrated ERP system covering:

CORE REQUIREMENTS
- WhatsApp Ordering: Distributors place Purchase Orders via WhatsApp, auto-created in ERP.
- Distributor Portal: View POs, invoices, payments, delivery status, and live stock.
- Sales Workflow: PO → Sales Order → Pick → Pack → Delivery → Invoice.
- Procurement: Supplier POs, landing costs, GRN, vendor price lists, AP integration.
- Inventory: Multi-warehouse, roll tracking (brand/variant/width/length/micron), UOM conversions, barcode/QR operations, FIFO/Moving Avg valuation.
- Warehouse Ops: Receiving, put-away, picking, dispatch, courier tracking.
- Accounting: Automated postings, landing costs, distributor payments, financial reports.
- Product Structure: SKU matrix + remaining-meter tracking.
- Non-distributor orders entered manually by staff.

DELIVERABLES
-Recommendation: ERPNext vs Odoo
-Full configuration of Sales, Procurement, Inventory, Accounting
-WhatsApp ordering integration
-Distributor portal setup
-Data import (inventory, vendors, distributors, COA)
-Workflow diagrams, UAT, training, and go-live support