There are 2 versions of the system disk, one for Model 100 (and 102) only, and one for both Model 100 & 200.
Steven Adolph has dissected and copied the system disk files.
System Disk files from Steven Adolf on Club100
The system disk formatting and files are fully described in the service manual.
Arcadeshopper has copies of both versions of the system disk.
File:M40 P.bin is the main rom
File:M17 CG.bin is the character generator