I would do as Gray Beard advised... BUSA puts out a kit designed to teach you to build..I would have a look at that..It is not cheap but it may help you learn the building process..If you can find a club to join and can find an instructor he may have a prefered trainer that he would like you to build so you might want to wait for your instructors inputt...Myself I would recomend an Sig LT40 They are great flying trainers....If you get boared you could always build yourself a set of floats for a 40 or 60 size plane...if you stay in the hobby you will probably be wanting to try float flying before long...