Its noble, to build from plans, to 'scratch build'

RCM sells a few designs, somed that are trainers. Dunno if you'll find an LT 40. But you might want to contact the boys at Sig, since they are the designers and kitters of this fine ariplane. A set of plans shoudl be no worry.. just a few $$

But buying a kit does have some benefits, as all parts are pre-cut for you, you have an instruction book, and you are given most required hardware to finish the model. You'll only be required to purchace a few items to complete the plane. And I beleive a kit, this complete, will be cheaper in the long run..

this is a '40 sized' plane, meanign it'll require abotu a .40 sized engine.

ther eare smaller ones, such as a .25 sized trainer, but the smaller they get, the 'squirrely' they get, even wiht some 'light' winds. You might want to then look at an electric trainer, as they are generally a smaller plane.

We start with 40, because it is a resonalbly sized plane.. fist most cars, and wallets, flyes on most days (windy..) and can bee seen..