I sounds like you knew what you were doing. The numbers balance near perfect. All three 529 distributions are fully covered by qualified expenses, including the computer*. Do not enter any of the 1099-Qs on either tax return. Doing so will most likely lead to mistakes (you situation is too messy for allocated entries).
There is enough tuition left over to claim the AOTC. But, you won't get much (less than $300) because your income is near the top of the income phase out range. Enter the 1098-T on your return. Don't bother to enter any other numbers (books etc) they aren't needed and/or were used for the 1099-Q. Do not enter the 1098-T on the student's return.
* Yes. A computer is a qualified expense for calculating your tuition credit. For a full discussion see:
https://ttlc.intuit.com/community/college-education/discussion/is-a-computer-a-qualified-expense-for...
https://ttlc.intuit.com/community/college-education/discussion/re-education-expenses-question-comput...
