You don't mention 12" deluxe!
It's a tough choice.. aperture rules, so I'd go the 12", and then spend $99 extra ontop to get the GS crayford put on. You don't need to worry about the fan just yet, although it's handy to have.
As long as the 12" is portable enough for you, moving in and out of the house, to and from dark skies etc, you'll love the aperture!