The 170, 270 and GT interiors all had different patterns but the same basic colors. Here is a picture from my 65 Color and Upholstery Album showing the all vinyl patterns and colors for the 170
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I may be mistaken but I believe Legendary only does the pattern for the GT and in the GT colors. You might check to see if they do the 270 style. You also might see if SMS (I think it is) carries the 170’s vinyl inserts and skirts in your choice of color. If so you could get a local upholstery shop stitch them up.
I ran into a similar issue on my 65 Dart wagon with it’s torn up front bench and special rear folddown seat. No one carried ready to install seat covers in the 270 pattern. Legendary only did the GT bucket covers and nothing for the wagon rear seat. My solution was to use a complete 66 Barracuda interior - front and rear seats as i saved the interior from a Barracuda I parted out. Legendary make covers for that year. I did a custom order - 66 Barracuda interior in the 65 metallic blue color.
