My only 2 cents is, it might be useful to start with smaller models, and scale up. You might learn a lot of expensive quirks, on a smaller , less expensive scale? I also want to mention that, it seems 3D printing is often looked at as an isolated thing - build it all of plastic w / printer - but the more practical application is in creating parts, or using 3D printing in conjunction with traditional construction methods. History is replete with examples of people laughing at young (and old) people's garage projects. Consider it merely an aspect of biology: essentially it's people telling you not to eat the red berries. They tell you this for good reason. But we never find the new berries without going through it.