See if your local hobby shop can get the stuff required from pro glow in West Aus.
from my local hobby shop i pay $22 for a 20 litre of Meth, $30 for a 5 litre of castor, $25 for a litre of Nitro
i run OS#3 plugs i all my 2 strokes with a 20/10/70 fuel

heres the link to the suplier, they also make a good 5ch RX for about $75
http://www.lionelectronics.com