Hi Hambousha,
My 2 cents;
1. Leave your spouse academic details as it is; just know that you will not earn any points for her education as you did not do an ECA for her degree. So, I will advice you re-compute your FSW points (i.e that you met the 67 /100 score) to make sure you met the eligibility.
2. It is also advisable to leave her details because in the personal history section you will have to account for the time she spent while completing her degree. it is easy to keep things simple, one small inconsistency brings about more inconsistencies.
3. I am not sure your woman will be happy to learn that you are declaring her as illiterate. Mine wont.
wishing you good luck