Certainly doable - if you have a machine that runs Linux (if not, a boot floppy or boot CD is useful - like tomsrtbt and Knoppix)

You need to create the same partitioning scheme as the builder would. For sizes (except the music drive - use all that is left over) look at the existing partitions on your current drive.
I think the parameters to use for the mkfs command when creating the file system on the music partition (to get the proper space per inode ratio) have been stated previously here on the BBS...

/Michael