What would you recommend for visitation days if one has full custody?
(1) Every other weekend, pick up on Friday;return by 6:00 PM on Sunday? I am thinking 6:00 since they are school age. With one or two afternoons after school during the week.

Any reasonable recommendations would be appreciated.I feel I can always willingly give more upon request, but if it is a court order, it is locked

This is reasonable visitation when one parent has primary custody and one parent has visitation (also called secondary custody).

What is most important is that the visitation schedule is in the best interests of your children.