Out of interest... Would it be a good idea to use Viking Conquest as a base and move all files to that structure? Then you could have ships and may solve some other issues.

I only mention it as the mod has been recently 'remastered' getting rid of the previous mod structure that was based on brytenwalda, which may i say, was a very great mod. Actually as i recall the team behind that mod actually made the Viking Conquest module that you can buy (i am sure i read that somewhere).

I am a modder myself and have worked tirelessly since 2013 on my mods (not warband) so i appreciate the amount of work that goes into any kind of change.
You can get the files here
https://www.taleworlds.com/en/Games/VikingConquest/Download

Remember people if you enjoy these mods and spend many hours on them please donate to the cause as these modders spend an unbelievable amount of their own time on them. Or why not offer a helping hand.