I remember reading a thread on Armor Archive historical forums from a gentleman who was attempting what you describe Sir Ian. If you really want to be top of the game, you need more than armor, more than soft kit, more than horses (plural!) more than Pavillion and accouterments - you need people. Servants, squires, retainers... and all the armor, kit and civil items for those people as well. So I agree the full-on impression is a daunting goal, and quite literally beyond reach for a single individual.
I've been thinking of what my own answers would be if I were asked the same questions, and I realize I don't have a very well defined goal. Because of how I got into this, an extension of sword collecting into armor collecting, and an extension of armor collecting into more of a full impression, and the realization that the full impression includes so many little details that I have to pick and choose, and the final realization that I need a goal in order to know what details are highest priority.
But I don't want to further hijack the thread to talking about me. Thanks for answering my questions, I appreciate it.