Will need to check but i doubt that i would have all those documents. Can i just make a Gift deed stating that i received the cheque from my father and maybe explain in the LOE that the cheque came from one of his business transaction directly submitted in my account and not mention the sale of the shop or anything.I think thats mainly for online transfers where the bank account and sender's account is appearing in the bank statement. you can amend the wordings but dont mention the cheque number as it will be a flase statement if you say your father transfered through that cheque.
Do you have sufficient documents for the other option ? like shop ownership and the Name of that very person in the sale agreement who has signed the cheque ?
Also would like to add this around 35% of the required fund, rest was already in my account as part of my savings.