Looks reasonable for a budget package. I'd like to see one set up before committing to the purchase of one. Gic and marios are in the same market and closer to homer for you.
From what Redback has said. Shackle springs are eye to eye its slipper springs are what I would avoid (although my old Jayco has them) and in that section of the market they probably not rebound. In my opinion a 45mm round axle would be strong enough for your purpose, I would personally step up to a 45mm square. I dont have a kitchen in my camper and generally use a stove stand with a stove or BBQ, And my water is carried in jerry cans. Brakes are weight dependant and can be added later if you need them (again my camper has no brakes and is about 100kg from needing them, but will be added soon).
It all comes down to what you think you need whilst camping and what you think you can do without whilst still remaining comfortable. In my opinion the Kakadu from TP offers slightly better value for money as there is less that you would have to do later, But as you have said it's largely about budget with this one.
