I was going to say something similar and mention hawse pipe re-routing for access to the chain locker but being a newbie I shut up until I saw your post. They do have a great looking deck though so a perfectionist job will be called for. My first windlass was a royal lofrans, then wentvelectric.What exactly is the problem with installing a windlass behind the chain locker?
Here's the setup on Avy-J, works very well
View attachment 190531
Yes you are right of course. I had to fit a whole new stemhead fitting with an offset lead to port or stbd for the chain on my first ever cruiser. Massively over engineered but that is the way I like it. Good luck to them. Great decking- againIt is not a problem installing a windlass, or creating a chain locker further aft. However look again at the current forestay fitting and the skinny little bow roller and it will need a whole new stemhead fitting. It is possible that a manual windlass could be mounted where the existing locker lid is, but doubt there is enough capacity in the locker below to take a decent amount of chain. The OP is taking his boat from Denmark to Turkey and the current anchoring arrangements are totally inadequate.