Mint live CD except not

so, Sup /tech/, my issue is simple.

I have is a ubuntu live CD and a Mint iso, I have no pendrive and no dvds around to burn Mint and make it bootable.

I want to dualboot Mint/win 8

>without a Mint live CD, only an ubuntu one.

is such wizardry even possible?

I have truly not tested it, but I think you can:
1. Start up your computer with the Ubuntu live DVD
2. Open GParted and scan through all "devices" until you see a hard drive with an "ntfs" partition that seems to be where Windows 8 is installed. Note the name of it (/dev/hda, /dev/hdb, /dev/sda or ... the rest of the steps will assume it's /dev/sda).
3. Create a ~1GB "fat32" partition on /dev/sda for the "frugal" copy of Linux Mint and "apply" the operation, then quit GParted.
4. Open the file manager, eject all "devices" except the one where the "frugal" copy of Linux Mint belongs, then quit it.
5. Open a Terminal window, and
$ mount

Look for where the new partition you created (/dev/sda(#), type vfat) is on; the next step will assume it's on /media/BA6DF957-B51D-11E2-BF03-3C970E22A897
6. In the same Terminal window:
$ sudo dd if=/dev/sda of="/media/BA6DF957-B51D-11E2-BF03-3C970E22A897/winmbr.bin" bs=512 count=1
$ mkdir "/media/BA6DF957-B51D-11E2-BF03-3C970E22A897/boot"
$ sudo grub-install --boot-directory="/media/BA6DF957-B51D-11E2-BF03-3C970E22A897/boot" /dev/sda
$ exit
7. Go back into the file manager, keep searching all devices until you find the Mint .iso you saved, then mount the .iso
8. Select every file and folder at the top-level of the mounted .iso, drag it, and drop it on the icon for the device where the "frugal" copy of Linux Mint goes. Replace (or merge if you can't replace) every folder it asks you if you want to replace (or merge; these folders are typically the "boot" and "grub" folders)
9. Go back into GParted, right click on the listing of the ~1GB "fat32" partition for the "frugal" copy of Linux Mint, choose "Manage Flags", make sure the "boot" checkbox is checked, then quit GParted and restart your computer.
If these steps actually worked, you should be able to get into the "frugal" copy of Linux Mint which you installed from Ubuntu, but although it will work a bit, you may want to install an actual copy of Linux Mint and then delete the frugal copy.