I'd recommend any cabinet in which the control panel and bezel are at the the same angle, like a Midway (Pac series, Galaxian), Stern (Scramble/Super Cobra), Rock-Ola (Eyes/Warp Warp), or Taito (Qix/Jungle King). On those cabs, you can truly "follow through" with rolling the trakball and not smash your fingertips on the monitor bezel.
That Centipede conversion would be awful to play US Classic in for that very reason. OUCH!