If your just trying to make a keypad then yes, it can be made with the arduino and a membrane, the only other thing you would need to buy is some wires.
Please keep in mind your not go to end up with a product of the same quality as what a professional will sell you. If you were serious about...
It will work, but I'd suggest using a replacement part membrane for the atm. The idea is great, if you have limited electronics experience i'd suggest building it on an arduino.
I've successfully built a prototype of this using the following two parts: