I scrapped the crate I had used from Melbourne to Munich, but I've still got a big Kawasaki metal crate, which I could give to you for free. The crate isn't complete - it is just the pallet wand the frame fitting ontop. This means that you will have to cover the frame with cardboard or plywood or something similar.
On the other hand you could just contact your nearest BMW M/C dealer and ask for a used crate for one of the bigger bikes (GS, RT or the like). Since these are only used for one-way, the scrap them after use and should be glad if somebody carries their crates away ;-)
These crates are rather big though, since the bikes are transported standing upright on both wheels. And the wheight-volume is bigger than the actual wheight. So if you finish your own crate only as big to take the bike with the frontwheel removed you should pay less for your transport.
Send me an email if you want the Kawa crate: vaufi et gmx.net
Only when we pause to wonder
do we go beyond the limits of our little lives.