This dataset contains software, sensor data, and experimental recordings generated during Year 3 of a DOE-funded project focused on the co-design of marine energy converters and autonomous underwater vehicle (AUV) docking and recharging systems. Data were collected during experimental testing at the O.H. Hinsdale Wave Research Laboratory and support foundational research aimed at advancing coupled Wave Energy Converter (WEC)-AUV systems for marine energy applications. The dataset includes pressure sensor recordings collected on a remotely operated vehicle (ROV) under varying wave conditions; vehicle data recorded during autonomous docking operations; and video footage from tests demonstrating AUV docking procedures. Also included is software hosted in a linked GitHub repository, which provides installation instructions, supporting code for BlueROV2 operation, and relevant dependencies for data handling and system control. This release builds on data provided in a previous submission from earlier phases of the project, linked below.