Hal's recommended sequence of the build.
With some modification by me.

Key: Currently Working on it Finished

1. FAA notification of the project
         Not necessary now.
2. Wing ribs - July 2, 2007
3. Ailerons
4. Lower wings
5. Upper wings (3-pc)
       Upper Wing Center Section
       Upper Wing Tank
6. Metal fittings - September 6, 2014
7. Tail surfaces and controls
       Stabilizers and Elevators - May 16, 2009
       Trim Servo Tabs - May 19, 2009
       Trim Servo System - February 7, 2015
       Rudder - June 19, 2014
8. Found the Radial Engine - September 1, 2008
       Picked up radial - September 13, 2008
       Overhaul of engine
9. Fuselage
       Welding up fuselage - November 17, 2008
       Welding up seats - December 9, 2008
       rudder/brake pedals - December 31, 2007
       bungee truss - February 13, 2008
       throttle quadrants - August 19, 2008
       Stand-offs, stringers, formers - March 16, 2013
       turtledeck - June 21, 2015
       Instrument Panels - May 7, 2016
       Seat Backs - December 16, 2015
       Seat Pans - January 2, 2016
       Flooring (heel trays, etc)
       Attach Flooring (heel trays, etc)
       fuel tank - September 21, 2019
       torque tube controls - May 8, 2009
10. Main landing gear - March 9, 2012
      Tail Wheel - September 6, 2014
11. Cabane assembly
12. Engine mount - January 1, 2022
13. Firewall - November 27, 2015
14. Initial rigging of "I" struts and slave struts
15. Sheet metal and cowling
   Initial patterns for skins - September 15, 2018
16. Fitting up of the windshield (old style) - March 9, 2018
   Setting up the convertible rear bubble canopy
17. Install the Radial Engine
18. Install the brake system
19. Fuel system installation
20. Install wheel pants and fairings
21. Aircraft registration and N number assignments
         Reserved NX-211-00 - October 28, 2008
22. Cover and painting
23. Final assembly and rigging
24. Safety cables and landing gear
25. Weight and balance
26. FAA inspection and release for test phase
27. FLIGHT TESTING !
28. Performance data
29. Reference table.