Servo ..... mate... no one knows what RPT means outside of Australia for a start... its a very Ozzie term . Here its a 121 operation.
Also as per INA Sec. 214(b) INA Sec. 214(b) be careful about publicly stating you have intent to be here permanently when getting the E3 visa. Yes its possible with a good immigration attorney, but you could get your visa denied if you imply intent at the outset.