well, if you are willing to get a more pagan representation (the goddess Brigid, as opposed to the saint) there are a number of catalogs/companies who make them...she is revered as a figure of Celktic myth: the goddess of poetry, healing and smithcraft. At Imbolc/Candlemas she is featured in rites which emphasize her connection to domestic creatures (lambing, etc.) and the rebirth of the land in spring...

As for statues I ahve seen a number of them from different makers:

Mythic Images, for example, out of California.

Paul Borda, a sculptor from Vermont.

If you type in "Brigid statue" in a serach you will probably find any number of mail order sources...