You can get the sound samples here:
http://samples.mameworld.info
Place the zip in your MAME/samples directory and make sure the zip has the same name as the rom.
To add the game to Launchbox select your arcade platform and go to Tools-Import-ROM files, click Next, click Add Files, navigate to the rom, select Use the files in their current location, deselect Skip games unplayable in MAME.
Hopefully this should do the trick.
EDIT: Just did this and it imported for me and the game boots. I don't have sound as I didn't add the samples to the folder. The game looks pretty cool actually