Definitely keep it!
I moved from the UK to New Zealand and took loads of Amiga stuff with me - and you can't physically move much further in terms of distance than that! You'll only regret getting rid of it...
No doubt you'll have to box stuff up and ship a load of things in a container (or part of one), so an extra Amiga, regardless of weight, isn't going to make much difference.
I used
International Movers and they were very good, reasonably priced and very professional (basically, it's a door to door service, a team of four people came to the UK address and boxed everything up that wasn't already packaged) and not even one glass was broken when we received all the stuff in NZ and unpacked it (which they'll also do, plus they'll remove all the packing rubbish).
And these guys charge by volume, not weight (which was great from my point of view!)
- Ali
