upto now you've been learning how to pass the test, soon as thats over you'll learn how to drive.
changed my rad at the weekend, to actually fit the parts, perhaps half an hour at most, to bleed and fill, 10 mins...
just remember to plumb the rad in on the bottom hose, fill the rad up with mix (50/50) and then plump the top hoses in, saves time pi$$ing about afterwards.
have fun!