An old program Amapi can transform a polygon mesh in nurbs mesh acceptable by Moi
http://moi3d.com/forum/messages.php?webtag=MOI&msg=5090.1
Alas this program is not more released
Try to find the version amapi 7.52 if you can

Number of polys is maybe be 1 000 - 2 000 I have a very old computer so...
you can send me a file i f you want that i try to transform the mesh for you ;)

From what i see from the Danperk example : Amapi keeps the same number of "patch"