Just bite the bullet and get the C11 Edge HD. Then you will have everything you seem to desire, F10 , F2 with Hyperstar , F7 with .7x HD reducer and.... a nice wide aperture scope for visual.
Go on you know you want too.
Or
If visual's not a big deal, the C8 Edge HD is cheaper again and offers all the above options. Having said that, I've still seen great views through an eight inch scope too.
Good luck
