Thomas, you can get Redline (smurf blood) from JustJap in Kirrawee: http://justjap.com/store/product.php?productid=17082&cat=&page=1
Getting the 3.8L works out a bit cheaper than buying the 0.9L bottles
mrl's idea about getting a handwash pump and hose is perfect to pumping the new oil in.
As other people have mentioned don't bother filling up through the gearstick. Stick to the fill/drain plugs underneath.
The plugs will be in tight so make sure you have a torque wrench to get some leverage and crack them loose. ALWAYS start with the fill plug (higher up) incase you cant crack the drain plug loose.
Anymore questions let me know.