noway this will work. Unit might get scratched and so on and it's hard to judge it. How much do you want to deduct for minor/major scratch? Define minor/major scratch. If after return, unit faulty only found out by next person renting, how? New person blame old person but old person didn't admit?

How much do you want to charge customer to pay initially? RM1000? I might as well get a my own set and sell it later? OR get secondhand set?