FWIW, I've got a gold 2000 5 string model on my Stambaugh. I've had no problems during the 7 or so years I've had it and it's held up fine.
Here's a pic of it on my bass.
I'm not sure if it will be a direct fit for the MMV, but the string spacing is adjustable which may help. Schaller has a diagram on it's site which may help you determine if it will work.
Matt