Using Cherry MX Switches to interface with Digital LED Strip

Hello, I'm using an Uno and a battery pack (4 alkaline AA with a diode to drop to 5.5V) to drive a digital LED strip for a small art project.

I would like to use three Cherry Mx Keyboard switches to interface with the strip. Various combinations of switches pressed will result in different colors in the strip. No switches pressed means no LEDs on.

I can simply solder wire to each switch in series with a 2kOhm (I was told to use 2k by a friend) resistor after each?

I would like some advice on which pins on the Arduino to connect to. I understand I can use a transistor to conserve battery life when the LEDs are off. General project advice is also appreciated.

Thank you!