So I took it for a ride around the block. It's been so long since I've ridden it that I'd forgotten what it's like. It was a blast. Gordon had a goofy grin on his face when I accelerated past him on the street. I did a lap around the block with the transmission bolts finger tight to align things. Then Gordon tightened them down and I pulled it around into the driveway again.
I'm having a celebratory drink tonight. There's still some fine tuning to do, the timing isn't right and the carbs are still only coarsely tuned, but it runs and that's cause for celebration!