If the car width is 10' and the average cabinets are about 3' deep then that would leave just a little over 4' down the center aisle if games were lined along each wall…could be remedied by having just (1) row but that would equal less games…
Not wired for electricity (though it probably could be down)
Hate the thought of loading games into it…though a forklift could make it doable
Another issue to consider is keeping the car cool in conjunction with running games…
Well…these issues aren't too insurmountable… just know they will have to be overcome. Go for it