Perhaps you could ask the technician at your library where you intend to have the print done.
You could always send your file to one of the many companies that specialise in printing 3D files.

Youtube will have videos that could help you regarding supports.

Supports do 'breakaway' but might need cleaning up afterwards at the contact point. The split model would be the safest way to print because just having the feet on the bed would run a risk of the print detaching from the bed.