I am setting up a hockey shooting station in my basement. i have a goal with a wall mounted radar gun. i am looking to use 6 d/c lights at the six positions of the net. i want the lights to come on in a random order, one at a time, light stays on for 5 seconds, then shuts off for 5 seconds and another random light will come on for 5 seconds then shut off. i want this sequence to continue for 3 minutes. i would like it to be push button start. could this be done for a reasonable amount of money. is there already a device out there i could use to do this? thanks for any help