Creating a bootable clone disk, sans firewire

My Lombard G3 Powerbook's power adaptor recently died, and a new adaptor costs ~A$100. My father has given me his old G4 Titanium powerbook to use indefinitely, but I want to clone the Lombard's HD onto the Tibook. I would use Carbon Copy Cloner for this, but it seems to require an external firewire drive, and the Lombard doesn't have a firewire port. (Also I don't have an external HD handy.)

What I want to try doing is, something along the lines of, making a disk image of the Lombard HD, burning it to a DVD-R on my iMac, booting from that DVD on the Tibook, and then using something like Carbon Copy Cloner to clone the DVD onto the Tibook HD. Is this at all possible to do? Is it even possible to create a bootable DVD? (I'm kind of lost here, and I have about an hour of charge left on the Lombard's battery, so it's sort of a one-shot situation).

I suppose I could take drastic action and just swap out the Lombard's HD with the Tibook's, but I'm inclined to try the option that doesn't involve unscrewing computer parts first.

Thanks in advance for any advice.