Take a look at where you can place it and measure the "fall". Compare that to your chosen windlass manufacturer/model and it's specs. Are you planning on a vertical or horizontal windlass? How comfortable are you with the wiring? Look at the installation/wiring diagrams that you can download for your chosen model. Good is an excellent, very robust brand to check into. Lewmar makes a couple models that aren't too expensive - may not last as long as some others, but still decent units.