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.