Paul, I am currently an FAA FSDO Airworthiness Inspector in Wichita. Grew up in a nearby town of Lake Orion (Shelby Township). Nice work so far. If you haven't already, I would reach out to the local Flight Standards District office and give them a heads up. Not sure if it would be the Detroit or Grand Rapids office. Keeping them in the loop and understanding what they will be looking for when the time comes for Certificate issuance and Registration. I know that having personnel build logs is something they would be asking for when your are ready.