Hey first of congrats on your new hobby!
You don't need to have the basking light on a timer but it is WAY more convenient

Both lights go off at the same time and come on at the same time and you don't have to worry about unplugging them.
Like another person said you don't have to worry about the heat pad, the only time you need that is if your tank drops below 60F at night or you can't get your basking spot hot enough.
Also keep a close eye on your beardies, they are very territorial creatures and as they get older they could start to fight.