Working on the carry-through wing spars (one piece in this case), and the firewall and engine mounting frame.
And why you can never trust drawings:
almost had a fit when I noticed the position of the wing leading and trailing edges on the drawing...this is INCORRECT and the kit is right (thank God!!!)
4 hours went today just on going overboard with (and screwing up) the wing spar, making a new one, and improving the engine mounting frame... pics up when something to show for the effort!