Hi,
It looks like a difficult situation, since you need the USB support from Ghost to get see the DVD, but that might conflict with keyboard.
Could you check in the BIOS if there is a any selection for USB devices such as 'Legacy mode' and toggle it?
Though this is not really a solution, one other thing you can try is to put the command line to do the restore with -batch switch so that there is no keyboard intervention required. However, even this is possible only if all the images are in the same DVD.
Let us know what happens.
Krish