The bilge pump is installed...

It does not move as much water as a bucket, but I can pump and sail at the same time.

The handle is clipped into a bicycle pump holder.

I had to route the outflow behind the seat otherwise it blocked me from lifting the floorboards. I was just plain lucky that the outflow itself did not block lifting the floorboard, I had not thought of it, nor measured it. There is about 3mm (1/8 inches) to spare.

I may later drill a hole through the seat support on the left there, to tidy things up, but right now the hose is down where you can't really stand anyway.

Start of bilge pump I installation.

This is the pump, with the newly cast pivot and the removable handle. It's on the base I made for it. It's out of the way, under the seat. And there's plenty of room to pump the handle with the floorboards in place.
More pics will follow when I have installed the hose. The inlet will be across the boat on the Lee side so that I can pump from the windward side. There's only one pump so if I'm on the other tack I will need to heave to.