Design Toscano QL164451 16 in. Zulu Warriors of Kenya,full color

Could we use the base (design tosc. classic statuary garden plinth base riser, large 15 in, poly) in a garden under david's bust? if so, how to glue?

Is this really made of cast iron and can it be placed outdoors or is it too small for that?

Where can I buy the base?

This is beautiful but how heavy is she for the price they are asking for is it worth it