Hi Steve,
I'm not familiar with the Orion Stratus, but wondered had you considered the Orion Expanse eyepieces? These have a 66deg fov (might vary with some focal lengths) and are very reasonably priced as ~$80AU a piece (1.25in barrel). I have the 20mm and am very happy with it - it's no Televue, but quite respectable.
Sirius Optics in Brisbane sell these. They don't appear on their web-site but they do stock them. One thing they do show on their web-site that IS very cose to a Nagler are the Widescan series eyepieces from Japan. 84deg fov. There is 20, 16 and 13mm in 1.25 inch barrel for $299AU each and a massive 2in barrelled 30mm for $399AU!
http://www.sirius-optics.com.au/eyepieces.htm
cheers,