As you suggest easy peasy, first support car on axle stands, remove wheels etc, undo 2 7mm allen headed bolts holding caliper to carrier, support caliper I use a bungee fixed to the spring, remove bolts from carrier to hub, undo screw to disc which sould then pull off, you may need to 'pursuade' with a mallet. clean up the mating face of the hub, clean new disc with brake cleaner and fit. refix carrier to hub. Remove both old pads from caliper (nearside has an electrical connector to unplug too) push back piston, I usually release the bleed nipple to allow the fluid to push back without overflowing and messing the paintwork, clean all surfaces and coat sparingly with copperslip where pads touch carrier. fit new pads and refit caliper into carrier, this bit can be tricky, take your time swear a few times and it will go, check all bolts twice, pump brake pedal a few times (engine off) and it will go hard, refit wheels, Carefully road test, Skipton can supply the workshop info for a very reasonable sum, I'd recommend getting them from him. I used EBC green stuff pads and their discs now braking is even better than with the OEM gear.