Changing the pads is no problem as long as your good with the tools you have and are fairly confident you can do it... the discs are a little more complicated. A workshop manual would come in handy
This should not be very hard although I have never done one on your vehicle you will have to remove the caliper from its mounting points so the whole assembly is out of the way of the disc and there will be either bolts or screws holding on the disc remove these and the disc should knock off clean the hub face thoroughly before you refit the disc and refit the calipers and pads