G'day Ant,
Welcome to the RCMR forums and to the addiction that will send you broke, crazy or to a divorce court lol. Seriously though if I could ask anything of a new player it would be not to over-think things. Watch the videos and build the AXN as Bruce shows. You will learn a lot about the plane, the components and how to deal with issues in the field. You'll also have the benefit of a heap of almost real time support here so post you issues, the only silly question is the one you don't ask.
I would advise gatting a simulator as the most difficult aspect of flying RC is spatial orientation. Once this has been committed to muscle memory you'll do fine. When you fly the first few times remember to stay high - height is your friend and you will be inclined to fly low, we all were... The 1000m thing is a bit off yet mate, you will see that 100m gets a bit funky and when you're readu for the 1000m journey, you'll be sporting much different equipment.
So for now enjoy the fun of building the AXN, they're a great little airframe and you will get hours of fun - in between the odd repair
Good luck and please stay in touch to let us know how you go...
HMk