If you don't have the complication of transom tabs on your air floor then it's just one hole to drill to mount a simple transducer timber leg. Less faff than trying to adapt something to the wheel brackets. Never shy away from drilling the transom to fit something you need, particularly so high up away from the water.
I fitted my first chart plotter to the Aerotec with DIY transom mount transducer in 2015 reporting on it in this thread. With the fixings used you don't even need a spanner when setting up.
https://www.rib.net/forum/f37/garmin...tec-69858.html
In post 19 you can see I initially trialled it held by a G-clamp to make sure it was going to work and get an idea of height before drilling the transom. It was when I had flip up wheels that later were changed to removable but that didn't alter the transducer mount arrangement.
Here is a better view five years later in post 5. I had intended to remake it in hardwood with a neater slot but it ended up serving its purpose until I gave up the depth aspect of a chart plotter to save kit and faff...
https://www.rib.net/forum/f50/one-pe...tec-83658.html