Don't overfill your oil! If you do you get excess pressure in the sump which can knacker your piston rings among other things.
You probably need to replace the copper crush washer on the drain plug too. I made both of these mistakes on my K10 & now it leaks oil from the sump plug and burns it fwn Costly mistakes for the sake of a simple check... :down:
Not to put you off, just as with everything, take your time! Oh and a plastic oil can + stanley knife make a handy drip tray which you can easliy and cleanly empty afterwards.