For airfreight, that sounds to be about in the ballpark... (but I would not be too surprised, if you could get it a little bit cheaper, if you keep asking around.) For seafreight, I think it´s a bit expensive, especially if you compare to sending it as regular seafreight (LCL), but for that type of transport, you´ll need to put the bike in a crate.
I´d give Tradelanes a call (google: Tradelanes Global Solutions). They´re in Melbourne, but I used them to ship my DL650 by sea from Sydney to Helsinki in Apr-2008, and they, in turn, used their agent in Sydney, so I could handle everything over there, no need to even call anyone at Melbourne.
I used a Suzuki factory crate (metal), and gross weight was 250kgs, and volume was 2.024 m3. A self-made crate will probably be a bit bigger, so sending it will cost more.
Those guys seemed very professional. Shipping took some 2 months total (the original ETA was 42 days, so it took almost three weeks longer), but this was because of some hassle, when the container was supposed to change vessel in Singapore, so probably nothing Tradelanes could do about it. (This is something to think about, especially when you´re in the middle of a trip: waiting could be expensive, and very frustrating! Luckily for us, the trip was finished, and we were back home, so it did not matter so much).
The prices may not be the same any more, in fact they probably are not, but I´ll mention them anyway: I payed less than 500 euros at the Australian end. On top of that, I payed about 180 at the port in Helsinki (charges at the receiving end are something to be wary of, especially when you send by sea!)
It is also worth noting, that I got some 3-4 other quotes for seafreight, and they were all considerably more expensive, some were over double compared to what I payed. So it seems, in every way critical, to find a good shipping company to deal with.