I'd do what I did on our 2017 Axis, we now have a 2018 Windsport 29m. If the oil and battery are in the same spot, remove the fold out work tray. Before, or after you cut the tabs holding the plywood in place install hinges on the left side so it opens away from window. Then with the plywood down place L our straight brackets on other 3 sided and use screws to tighten into place. A lot of work to access oil and battery service but best idea I came up with....good luck...
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