Whew, that is a heavy configuration.
You're planning a year in advance?
What type of bike and riding? Is that a one-way charge, or a RT charge?
You might consider:
- Folding Bicycle.
- Breakdown Bicycle (S&S Couplers, or some other bike).
- CARDBOARD. I'm not sure what the weight of cardboard + packing is, but it may be easier to hit your weight limit, and perhaps even stuff some clothes into the box.
If you start approaching $500 for your box, shipping, etc. Then you might be able to snag a used travel bike and save money. And, if you hit a good price point, you might be able to sell it afterwards if you wish, and recover much of your money.