First of all, thank you for the answers and sorry I didn't come back here before.
caesar - I saw your project before and it was one of the responsible for making me stop building my arcade and decide I would accomplish the jukebox first.

Problem was I wanted the tubes to be...ehhh...tubular. I mean, not having the 90 degree corners between front and sides as the ones from caesar have (correct me if I'm wrong). However, I couldn't figure out a practical way to do it on the top portion (ie. a curved tube) so I opted for designing my juke based on a model back - Wurlitzer 950 - as it has only side tubes.
At this moment, I had drawings of the front made on CAD and I'm getting quotation for wood cuts - I live in a small apartment and don't have room for doing it myself. As soon as I start doing something, I'll post pictures.