I didn't mention that I do have an N registered experimental aircraft here in OZ.
rnuts,
Please consider your position very carefully, the penalties for flying an aircraft without a valid C.of A or agreement of CASA to operate this aircraft in Australia are draconian, including substantial opportunities to become a guest of the Government for a number of years.
On the other hand, you will subsequently save a lot on international travel, because many countries will bar you from entry, including US, Canada and many EEC countries --- and you will save money on ASIC cards, as you will not get one.
Tootle pip!!