On another boating forum I found this product and company linked to. These parts look like they might be ideal solutions to some of the head scratching dilemmas I find myself in. https://www.usplastic.com/catalog/item.aspx?itemid=23014&catid=735 After posting the link I went back to the company and spent some time wandering around their site. What a great assortment of products, all in one place. The usual disclaimers apply.