Hi. I read your project description. Maybe I can help you.
First, I am survey and cartography engineer working with various type of data (raw field, maps, online data, photogrametry, etc ) for creating maps and models.
Very experienced with georeferencing maps whit coordinates or base map underlay, as I worked with old cadastre map for in digitizing process , and converting raster to vector.
Experienced with QGIS and Global Mapper that are very powerful tools for georeferencing and more.
Can you share you maps with me???
Check my portfolio there for positive feedback and work I do.
Feel free to contact me for more info.
Best regards.
Djordje