Borrow Against the value of your gold

Egyptian economy situation is not stable as the currency to the dollars keeps dropping. as per the central bank of Egypt if you want apply for a loan you should have an asset or prove of income or a stable job, thats why most Egyptian get disapproved for applying for a loan, therefore families start by buying selling their gold for sustaining their living standard. the solution I have is, you don't need to sell your gold, you can take a loan against the value of your gold, the gold will be reserved at a well know bank, and the customer will pay installment plus intrest rate for confirmed time span, after the installment finished we will return the gold itself to him back, if the installment not payed for maximum of 2 month the gold will be taken.
What I'm looking for a business plan specially for Egypt market.
gathering market data
Showing the benefit out of the program.
how this business idea will support families
Marketing plan
Website/Mobile Application platforms