Here's what yiu want to do. Head over to cometpinball and buy some bulk bulbs.
You're looking for 555 & 44s, frosted, and a white color. Warm white would be my advice and closest to original, but some people like sunlight.
Take off the backglass and count all the bulbs that don't light up anything on the front, usually everthing that doesnt have a small box around them. Things like game over, high score. Player # etc are what you want to avoid. These are all general illumination.. Next take off your plastics and count all the bulbs sticking through the playfield, those are general illumination.
Order that many bulbs plus a few extra.
555 have a wedged base you push in
44s have a round base that you twist in
Or wait to see if anyone off hand knows the correct amount
Inwas thinking they were all 44s at first, but I think a lot of the controlled lights are 555s...so all the bulbs you need may still be 44s.