Melena,
The ladies are doing a terrific job of talking through your options with you!

As far as high school credit goes, the English credit is composed of a combination of grammar/writing/literature/vocabulary. So, with that in mind, I think it is important to meet your daughter on her level in as many of those areas as possible while still being able to earn high school credit in the English area.

Since the English credit is comprised of several areas, there is more leeway in how you meet this credit requirement.
From what you've shared so far, I'd lean toward using Write with the Best as scheduled for writing. It will be more rigorous in some areas (and also give a different area of emphasis) than the IEW course that you listed in your first post.

It also stretches into the high school years, easily into grades 9-10.
As far as dictation goes, I think you will be fine with what is found within the CTC guide.

For vocabulary, you will find that DITHR will fill-in well in this area and that the science box will also lend itself toward some vocabulary work.

DITHR will also work well to help your daughter begin to dig more deeply into what she is reading and also learn to read with moral discernment. Here is a link to a thread where I share some high school level titles that you could consider using with DITHR that would be high-school worthy reads. Link:
viewtopic.php?f=6&t=7765&p=56997#p56997
For grammar, with what your child has had so far, I'd lean toward Rod and Staff 5 or 6. If you will be using English 5, I would do it at full-speed. If you will be using English 6, I would do it at half-speed over two years (which is what we do in CTC and RTR). After the freshman year, I would just continue on doing Rod and Staff at half-speed each of the following years. This will mean that you will not get to Rod and Staff English 8 in high school, but I'm of the opinion that grammar should be a steady progression (in order to be truly retained and applied, rather than a race). So, with that thought in mind, steadily completing Rod and Staff English 7 by the end of high school, and being able to apply it, is better than cramming it in to complete English 8.

High school has plenty of rigor, and much focus on language arts, so she will be getting plenty of emphasis in that area. Half-speed grammar in high school fits very well in the overall scheme of language arts and makes sure to keep everything in balance.
Your thoughts may vary from mine, but this will get you started pondering the best fit for your daughter. Feel free to post back and share your thoughts.
Blessings,
Carrie