you should mention that.
This is what we did:
At the top of our rudder posts (not sure its the same for all FP), there is a threaded hole, I think 10 or 12mm. I screwed in a bolt into that hole. I suppose it must have been put here for this reason, as there isn't another explanation I can think of for why there is a threaded hole at the top of the rudder post.
Inside the boat, directly above the rudder post, I drilled a hole through the bulkhead (you can access the back side of the bulkhead in this location), and attached a block with a bolt through the hole, the block had an integrated cam cleat which helped a lot. Then tied a rope
through the block to the bolt I screwed into the rudder post allowing me to pull horizontally on the rope
and vertically on the post. Then I could pull (fairly) easily on the rope via the block to help pull the post up with one person in the water guiding it through the lower bushing. The hard part is getting the post through the top bushing as it has to be aligned perfect, all while keeping upward tension on the rope to keep pulling the post up.
We actually did it 2x in one day, so as with everything onboard, the 2nd time is easier