i believe i have two, one standard and one high airflow, but for an AD6 v2. If I remember correctly they are still covered in their plastic wrap -- brand new condition, never even fingerprinted upon. Only problem is that I'm on my way to the airport to meet my brother to keep him company in his new (old) Cessna 421 for a trip to Havasu, but I'll be back to the workshop by Sunday afternoon, if you haven't already found a quicker source for used one by then, and I'll double check that my memory is accurate. There is a remote possibility that there is one for the AD6 and one high flow SJ8 version. Heck, there may be three total, two for the 6 and one for the Jib 8...remind me at some point and I'll check when I return.
Happy Fourth of July! (early)