That would certainly be a project as long you can effectively cut the openings as well as keeping them neatly done and correct to fit for optical drive and expansion slots along with the openings you would expect to see for P@/2, USB, and other.
The Vulcan case was bought here since it did have a carrying handle but was also quite a bit lower priced for a smaller portable case then when finding the ThermalTake model for twice as much as the alternative. The ThermalTeke model was lower and wider in shape seeing the one 5 1/4" in front and drive bay below and made of vinyl for the main portion of the casing itself with the plastic front face.
For a suit case project if metal that would solve the common ground issue for ESD. But can also bring up a shock hazard item when being made a portable as well. That was one concern for not wanting the vinyl case since plastic likes to be an esd factor at times.