I can say I would not recommend the Great Planes Extra a flying buddy has one and I have flown it I do not like the way it flies and he does not either. It also comes out heavy for the size of the plane unless you take steps to lighten it during building. I can not comment on the Lanier I have no experience with it. I would recommend the Columbo Anderson Extra check out www.planesplus.com for sizes and pricing they have kits and arcs.