The only difference between Full set and Full set with Box is the presence or absence of a box.
The contents are exactly the same.
The only difference between 3 piece set and Full set is the presence or absence of Driver CD and Manual.
Full set is a bargain, eliminating the box, thus reducing shipping costs, but still coming with all the accessories.
3 piece set
https://www.ebay.com/itm/404221950354
Full set
https://www.ebay.com/itm/404229081046
Full set with Box
https://www.ebay.com/itm/404252302631