After I read your post I was left scratching my head. I built the original Tipo that was if I'm not mistaken a W K Hobbies kit. I just assumed that the Great Planes kit was pretty much the same kit. I checked on the box and plans ( Great Planes) and it shows 720 sq in of wing area and a 65 in wingspan. I had heard of the
Tipo 750, but was unsure if it ever been kitted. Good timing with your post. I had just pulled it out to start building.