> However, the benefit is that we would then have plans (diagrams, specs, etc) to build it and one built we can iterate. Hypothetically we've lost the diagrams

> However, the benefit is that we would then have plans (diagrams, specs, etc) to build it and one built we can iterate. Hypothetically we've lost the diagrams,designs,knowledge to build a 386. Is it worth building one today just so we can remember how, and then iterate on it? No, absolutely not. The F-1 (and the 386) are ancient. Don't start from ancient and work up. Aim higher.