Aye this is no biggie mate, not sure what car you have or the condition of the current brakes. Sometimes the little screws that hold the disc's/drums in place can be hard to get out but an impact wrench normally gets by this quickly. Take your time, make sure everything is tight when finished and also apply copper grease to the backs of the pads and also the inner side of the disc's. Make sure not to get any on the braking surfaces though. You got the Haynes so get stuck in mate
For disc's and pads, I would normally allow approx 20-25 minutes per corner, awkward bolts etc included.
EDIT: Calliper winding tool not needed mate, place a thin piece of wood on the calliper piston the apply gentle pressure with a large flat bladed screwdriver or bar and push the piston back in. Keep an eye on the reservoir as the levels will rise as you push the piston back in.