Drivetrain now installed, fluids added, leaks fixed, and fluid systems primed. Ready for more test running to tweak the tuning.
I've decided to change the mounting of the upper body section over the drivetrain. It's presently a two man job to unbolt it and lift it off. I'll add hinges to the passenger(!) side, so removing a half dozen bolts will allow me to open it by myself.
The picture shows why it took me almost a week to cram everything in! The single open space is required to change gears in the top-load quick-change box.
The picture that didn't come out good is a temporary control panel to avoid climbing in/out of the cockpit. Switches for KILL, START, PRIMER and LEAN IDLE, and throttle and fuel shutoff are easily at hand.