The machine is definitely an original Theater but the blue paint was done by the previous owner. I know there were a couple of different heights available for the bases on these machines. Some had storage while others did not. I have seen Senior's with the taller base that has a cabinet door and a shorter base that is open in the back and does not have a door on the front but the base was original to the machine. My Junior is taller because it has the 120 base on it and that was taller than the typical Junior base. I would suspect that the base on my Theater might have been swapped out by the vending company if the original had been damaged but I have seen others with the shorter base. Curtis would probably be the best one to weigh in on this question.
The aqua colored Theater on Curtis' Stoner Candy Machine Instructions and Parts Manual has the shorter base in the picture below. My guess is that it could be ordered either way.
Tim