I think that your issue is largely dependant on where your place is located. If you are on big water it shouldn't be a problem as long as it is marked with a bouy. If you are up a creek in a smaller slough it may be an issue. It could cause traffic issues. Also you should consider your neighbors view. If it is in a smaller slough it could be interfering with their peaceful enjoyment of their property. Be aware also that once you put it in it is not yours and may be used by anyone. Keep in mind also that it may be tough to keep it in place. APCO uses 600lbs to hold a marker bouy in place. What will it take to hold your boat? A standard anchor won't be enough.
I didn't read the ixia sailing club link, but do know that an acceptable Method used in the past was about three trailer brake drums at the bottom of a chain, with a float big enough to support the weight of the chain.
About 30 years ago a friend wanted to put down a mooring at the DSC, But wasn't comfortable driving the club pontoon boat and asked me to come along to drive. We loaded the drums on the boat and started out to the site. Unfortunately a storm came up as we were motoring to the site and the water got quite rough, to the point that it was starting to lap over the front of the boat. I decided to back off the throttle - which turned out to be a mistake. The loss of thrust caused the front of the boat to dip and really catch a LOT of water. We dang near turned the DSC Pontoon boat into a submarine....
I would contact CaptBrooks at the Alexander Marine Police.
I did a mooring on river with a soft bottom. I chained together cylinder blocks and used an empty tank from a/c refridgerant as a buoy. The blocks were easy to work with since the openings are large enough to add additional ones as you work with them.
Wde have a small bouy off our dock that we anchored by getting a 5-gallon bucket (they sell them at Home Depot) with a large eye bolt, filled it with concrete and it works great. I suspect it would be heavy enough to hold a small sail boat but am not sure. Five gallons of concrete is pretty heavy.