Put some motor oil in the tank and wash it around so it coats ALL the insides, this will keep it from rusting. Leave the oil in there and wash it around every so often ,when ready to use just drain the oil and fill with fuel/petrol, the first tank full will be a little smoky but it won't hurt.
For other metal parts you can spray WD40 (if they have it there)or some type of thin spray oil.
For rubber items ,like carb boots, cover them with Vaseline or grease, this will help to keep them pliable because they obsorb the oils from the grease.
Xnavylfr(CHUCK)
Australia is a GREAT country, visited there (Perth) in the late 80s while in the NAVY.