Last night, after realizing this could be pulled off, I decided to run this script on an external USB drive that I own.
So I downloaded one of the 6.0 SOHO alpha ISO's, extracted it to a 2gb partition in the drive (first partition on it) and ran the script.
Plug it in to my lapop, and voi la!. I can boot off it.
This provides a great development environment for me, since I'm constantly having to burn CD-rw's to debug the gui installer... This is much... much easier.
I had forgotten about that external usb drive.