Most homebuilts are not even close to Oshkosh trophy winners. In recent years as builders building from scratch dwindle, only the better builders stay in play. The range of quality that is flying is end to end. The grade is safe, not perfect. You have to decide on will it work, just like you are doing trying to mate them to your fuselage. I see you are in Truman. Have you been to the grass strip in Jonesboro? Good chance there is some ULs there.