Quoted from Rdoyle1978:Google it
98% of the questions you'll ever have! OP, go work in a different industry and tinker with pinball on the side. Go to numerous shows and network with the pinball industry types. Repeat, repeat, repeat for several years. Let everyone and their neighbor at the shows know you want to work in the industry.
Then they won't be hiring a random, college kid. They'll be hiring (insert your name here).