I'm approaching this as it being my one and only chance to do something like this in my lifetime. I don't see me building or owning multiple aircraft in the future so I'm aiming to do what I want the first time :) I'm quite aware of the work involved and time frame required. There is always going to be new developments as you say but you can't always hang out waiting for the new technology. That TV I purchased last month is already outdated.......
Sure one can go out and purchase their own complete aircraft but the build itself is something I have always wanted to do. From my youth, building and flying R/C aircraft from scratch, the passion for a REAL plane has always been there. I obtained my PPL decades ago which has since expired and, unfortunately, haven't flown in many years. I have also spent a few years of my career as an AME so the ins and outs of aircraft are not new to me. I have and currently do have automotive projects on the go so believe I have the skills required to pursue such a build.