I am sure you could build your own with a little practice. This part of the hobby can be fun. A building like this is rather easy to make with a MDF or even foamcore shell with applied details and texture.
There were great modeling tips in the old British magizine Military Modeling back in the 1970s. Folks like Roy Dilly used simple materials to get similar results.
Here is an example: Make the walls with foamcore (the material sold in office supplies for school projects) or MDF (Medium Density Fiberboard sold in home improvement stores). After the walls and roof are glued together, apply details such as window and door headers with basswood. Add other details such as corner quoins by cutting file folder cardstock and glueing in place. The structure can then be stippled with a thin coat of Durhams Rock hard Water Putty for texture. When painted it will look like stone. Tile and slate roofs can be made by cutting plastic or cardstock shingles and gluing them in place. Chimney pots can be made with tubing or even straws.
Look for old modeling magizines, including Model Railroader. Model railroad Craftsmen and Narrow Gauge gazette for ideas, but give it a try as it can be fun!