Could anyone recommend the best source to obtain the following Seeburg
L parts:

(a) Front upper left soft/loud control knob with internal mechanism --
need complete assembly, reproduction okay!

(b) Reproduction upper door art glass.

(c) Top center brass reproduction "JP Seeburg" plate.

(d) Replacement upper and lower door lock and striker replacement for
the 5/8-inch bore hole in doors.

Thanks!
John Bohn