Howdy. I'm working on my first plane build right now, and have a couple questions. First off, the material is 4130 tube, but what diameter should be used for the fuselage? Wing? For the engine I'm thinking of the 30hp Briggs unit. I saw the 22 horse version on a similar plane, and the guy said he'd never go back to the Rotax. Any thoughts on that? Any other tips or advice for tube and fabric builds? Thanks.