Longbow traditional arrows and broadheads?

[woodswalker]

A friend is wanting to get hunting arrows for her traditional self-wood longbow, she shoots cedar shafts, ~29" Draw length and spined for a 47# pull.

Suggestions for a broadhead?  Have discussed a Zwickey Black Diamonds or a similar style. Remember wanting to be very traditional, but not maybe to knapped flint....

Sources?

[Snapshot]

Locally, online, Northwest Archery Company. www.nwarchery.com