Putting it all back together I built everything up in the right hand side of the frame. The trickiest bits were getting the trigger blade spring back in place, and then slotting the safety bolt into place. A piece of thin wiper blade steel helped in both places, to wrangle the trigger bladespring back into place under tension and then to depress the valve so the safety could slide into place. Also useful to jiggle the safety clip thing (sorry cant remember proper name for it) into place on the safety before the frame was closed up.
Be good. And if you can't be good, be good at being bad.