Right, so I've made some kind of progress here...

Took the hdd out and put it into my acer aspire one 150.

Installing to the hdd Kalyway 10.5.2 and re transplanting it back to the 751h...

In -v boot, I got as far as UUID issues with the USBFix kext, so I re-installed it without that.

Next issue was the ethernet's UUID, so I took out everything in the next install.

The post-setup boot on the AO150 got as far as clicking continue on the 'transfer files from another mac' screen - it hung...

I guess this was down to the Ethernet/WiFi drivers being removed, since the next screen is "How does your Mac connect to the internet" screen.

I'm re-installing Kalyway 10.5.2 now, and I intend to transplant the hdd back to the 751h before the post setup boot.

I'm making headway, but it's getting laborious re-installing all the time. Does anyone know how to remove/replace/fake the UUID calls from the boot plist?