[CA] [CA11] Element transducer choices, wooden boats

[NLNATL]

Hello, After exhaustive research for a simple chart plotter to switch between my boats as needed, I was most impressed with the Element series. The two models seem to meet most my criteria which was: price point, large screen but small size and form, simple maps and navigation mostly on inland lakes, rivers and costal areas, upgradable to radar, systems monitoring, and a shallow water sonar so to see the bottom clearly for snorkeling and scuba diving. Less important but a big plus would be occasional fish finding for the crew or guests. The snag seems to be that both of the boats I own are trailerable, antique wooden boats. The sailboat has a transom but it sits above the water line and my powerboat is a fantail launch, no transom at all, so best possible transducer would be a flush bronze Thru-hull (for both boats). It appears from the literature available that the only thru-hull transducer that will work with the Element S and HV is the HV-300, which is plastic and not flush. Is this correct? If so, is there a way to adapt a different transducer than the HV-300 or any future plans to introduce an appropriate Bronze thru-hull for the Element series for wooden boats? I liked the eS Series but it just seems crazy (and unlikely) that I will spend 3 or 4 times my budget for a unit that has much more capabilities than needed or will ever be used, just for the lack of a bronze Thru-hull for the Element. Thank you in advance for any advice or recommendations!