carlinux
Here are the dumpers:
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]
And here is the control utility (see readme.txt inside the archive): [Only registered and activated users can see links. ]
I can assist you with creating gfwdump.bin if you find gfwdump.exe too complicated to use.

You probably need to dump regions 0x0E, 0x11, 0x13 (and maybe also 0x0F, 0x22) in order to use that 360€ firmware mode on other device. Can you post those dumps here?
And also it would be great to see the dumps of bootloaders (region 0x05) for both USA and EU models. I want to check if those bootloaders are capable of flashing GCD files...