Thank you both for your help. I think the shipping to Oz will make this way too expensive. It might be light but the size of these kits is what will make the shipping $$$$$$$$$$$$$$$$$.
Surly there are plans for a 1:5.5 spitfire for mt 23-30cc gas motor. And I could make it with balsa like a beginners kit????????? I love the tiny 4 strokes for a 1:6 but they are also $$$$$$$$$$$? Gas motors are easy for tuning and purchase. I will have the time to build one from plans but will a balsa 1:5.5 be strong enough?