ROM image files are required for emulators but they are copyrighted and cannot be distributed freely. A good place to fetch ROM images is the emulators section of the Asimov repository.
Vinace needs internal ROM but also Disk II ROM if a Disk II Controller is plugged in. Here is a description of ROM files used by Vinace.
Contains only one file : APPLE2E.ROM
Table 8-1. APPLE2E.ROM file map
|0x0200||0x02ff||Unknown, probably a slot 2 peripheral card rom|
|0x0600||0x06ff||16 Sector Disk II controller card ROM|
|0x1000||0x3fff||Integer basic ROM ?|
|0x4100||0x4fff||Internal $C100-$CFFF ROM|
|0x5000||0x7fff||Main $D000-$FFFF ROM|
Same as apple_iie_rom.zip.
Contains only one file : APPLE2.ROM