From 60 quid for a little high D "Bumblebee" that would fit in your pocket and is ideal for taking on walks etc - to 130 or so for a commissioned one in lower pitch and made from Eastern Red Cedar. (See www.ugunaflutes.co.uk - end of commercial break.)
Shame you're so far away: I'd love to see one of these being made... -- and my son, a musician, would love one.... Off to visit your website...!