RE: 40 or 60 size kit to build
How about a Great Planes Extra 60, or if you could find an Ultra Sport 60. I like the .60 size best, but there is nothing wrong with a .40. Wanna go fast?? Get a Patriot 40 or 90!!!! I know there are a lot of 3D Kits out there, do some searches and have some FUN!!! Happy building whatever you get.