If you want something a bit larger than a typical .40 or .60 size trainer try the
BTE Flyin' King. I haven't built a kit in over 10 years and found it very easy to put together. The wood is of the highest quality and the manual is detailed and very clear. I made a few mistakes, but they certainly cannot be faulted to the designer and manufacturer, Bruce Tharpe.
Give it a try!