Wish I could help. Mine is a Furlex. Did an overhaul
last January. It was a PITA in general but doable with patience and attention to detail.
I don't know about the Profurl but the Furlex has non-captive bearings and a "fixed" forestay length requiring threading the forestay through the lower thimble.
- Loose bearings means order some extras. I lost
some during disassembly on the boat.
- Forestay. I had to buy a new one. It was impossible to thread the used (splayed) forestay back through the thimble. The new forestay had a taper built in. Mark the length. Thread through thimble. Cut the stay. Assemble the lower attach fitting, assemble the foils.
Sorry if the Profurl is completely different and this is off-topic.