If not I can use an adapter. I think the Audyssey mic is 3/8" thread? I'm not above figuring out a way to make it fit in the included mic clip either, lol. If you want I'll set it up, see how it works and report back tomorrow with my findings.
The boom mic stands are generally designed to snap the cylindrical body of a standard microphone into. I don't know if the specific one you are getting has an adapter (it looks like it might).
The Audyssey mic has a threaded insert in the bottom to fit any standard camera/video tripod.
Also, the Audyssey mic is designed to point straight up and boom mics are generally designed to point the mic at some marginal angle from horizontal. If there is not a "wrist" action at the end of the boom, you will need to figure out a way to orient the Audyssey mic in the upright position.
A boom stand is great for REW and standard microphone, but might not be the best option for Audyssey.
Since you run both, I think you are better off getting a boom mic and adapting it for Audyssey than doing the opposite (aside from getting two stands).