Neat Cleat installed on a Crestliner Fishhawk
The Neat Cleat offers what you've been asking for, a retractable cleat with a thin profile that installs easily in narrow gunwales.
Installation is simple and quick, it can cut your labor cost! Just drill twice with an appropriate hole saw. Drainage receptacles (included) press-fit onto the threaded studs to capture moisture and send it to the bilge. The receptacle outlet is sized for standard 1/4" pilot tubing (not included) so you can use parts from existing inventory.