Tips for a more affordable castle

Hi! I would like to get into castle and have my first build. As the title suggests I don't really have a large budget, so I would like to ask for some tips for MOC designs for a smaller / more affordable castle MOC instructions. It really doesn't even have to be a Castle as such, but also a smaller fortress / fortified manor. My budget would be under 250$ and I know this isn't much. I really liked the recent Bricklink castles and the Lion Knights castle as well. Any particular instructions sellers and MOCs would be appreciated!