Cow Nyala ( what kind of form will be alterable & work)

I am mounting a lifesize cow Nyala.
Nobody sells a form for them & I do not have access to measurements for the skull.
My Question is what other kind of mammal will be close enough to be able to alter it to work?
Does anyone out there have a Nose to Eye, Length of Head & width of Eye orbits for a cow Nyala.
I would deeply apreciate any help I can get on this.

Thanks
RJ Simington

Return to Lifesize Mammal Taxidermy Category Menu

I used a female (doe)

whitetail...no leg rods when poured, so I could lengthen the leg areas. The body fit fine, as did the neck...the face had to be altered.....but it was closer than anything else out there.