I am sure some one will dispute this ,but..I just built a Japanese kit..No english- ducted fan -tapered wing-tapered chord .I was faced with the same problem--Only right wing shown-I found out you can use the right side view --just build it - left wing (upside down).Just keep in mind its upside down.Ie- top spar goes on the bottom ,etc.I am sure there is a reason why it won't work--sounds too easy