I already switched gramps to use python26 (thus gnome-python26-extras) instead of python25.
I note that gnome-python26-extras declares a dependency on gtkspell2 but gnome-python-extras does not. Should this dependency be added to gnome-python-extras?
Note that there is no capability for ports to depend on a variant of another port; this is ticket #126.
As I mentioned to you in email, I believe spell checking is working for me. If it is not working for you, you should attach here the config.log from your gnome-python26-extras build (meaning, you would have to rebuild gnome-python26-extras and grab the config.log after it's done configuring but before it's done installing) so that we can see what it's failing to find so that we can identify what port(s) we need to add as dependencies.