Make or Buy Allen Corporation currently makes the nylon convertible top for its main product, a fiberglass boat designed especially for water skiing. The costs of producing the 1,500 tops needed each year follow: Nylon fabric $300,000 Aluminum tubing 96,000 Frame fittings 24,000 Direct labor 162,000 Variable manufacturing overhead 30,000 Fixed manufacturing overhead 152,000 Dustin Company, a specialty fabricator of synthetic materials, can make the needed tops of comparable quality for $