This is my current project. I have 4 PBY kits to build (PBY-2, PBY-4, PBY-5, and PBY-5a). This one is out of the box.
Very nice, you are going on well. I have reached the stage with my Acad 1/72 PBY5 where I need to try and mage the canopy fit. this will need filling and sanding. I am way to lazy for that so have boxed it till I can come up with a better solution LOL.
5 PBY’s, you surely love Cat’s 
Theuns
Just four cats The one I’ve started is included.
I found a great bargain on eBay. Someone was selling 4 Cats and I picked them up for ~ $40.