The 11 should work nicely - I have one and use it a lot in my C8 which has comparable focal length. The 6.7 is probably a bit high magnification for most occasions at about 300x.
What targets are you interested in and what's your budget?
Budget just went to zero, advised of retrenchment in Jan. I have those eyepieces already so they're going to do until I workout things out. Just another opportunity in disguise, might even get used to not working.
