Bob,
For sure everything but the attitude would work fine. We're not 100% sure about the attitude. We have had customers put them in helicopters and they report they perform well, so one would expect that they would work okay in a gyroplane as well.
One other issue may be our airspeed indicator- we don't indicate below 30KTS, so if you need something that reads below 30 KTS, another ASI would be required.