Plugin for Spot market (Electronic Warehouse receipt settlement process)

Dear Concerned, 

We want to develop a plugin for Spot market for electronic warehouse trading process. Attached is the complete BRD and process flow of the trading process. Moreover we need following feature in the plugin. 

https://pmex-my.sharepoint.com/:f:/g/personal/muhammad_nasir_pmex_com_pk/EihUv2JjShZEu9OEkV7EfdgBbI1GhY-1Li36656c6jUaXw?e=2YC7Qu

• Pre trade checks
• Short selling should be restricted on MT5 level through plugin
• EWR open positions for Buyer and Seller orders should be removed through Back Officer in agreement with Operations.
• Trade by Trade settlement will be done along with collateral movement
• EWR Inventory settlement will be done at day end.
• EWR financial ledger entries settlement for (Commission and Fees) will be done at (T+1 logic) on existing end of day along with futures market.
• EWR financial ledger entries settlement for (P&L, CMC charges, Warehouse Charges and Transfer charges) will also be done at (T+1 logic) separately like existing end of day along with futures market.
• For Buyer and Sellers EWR settlement, there will only be contract level assignment. E.g., both buyer and seller should belong to same EWR contract with respect to their location. 
• A separate button for settlement data posting to CMC will be added for EWR Settlement.
• A separate button for Collateral release from seller to buyer at end of day will be added for EWR settlement.