Measure the width of the Blue and Gold stripes and also the width of the space between them exactly. If you can't find the exact match, it's not too difficult a job (for a short area) to piece the blue and gold stripes separately. Buy whats close and cut it to separate the colors. Typically it's the Blue stripe and the space that'll be off. Match the width of the Blue and install. Come back and install the gold stripe after. Before you add new stripes, square off and cut the existing stripes on your boat to ready it for the new piece(s). Overlap them by a half inch, cut straight lines and your good. From a reasonable distance, nobody will know.