A. Create four checkpoint schedules:
Snap a checkpoint every day, every hour between 8am and 4pm, keep 7.
Snap a checkpoint Mon-Sat, at 5pm, keep 6.
Snap a checkpoint on Sun, at 5pm, keep 3.
Snap a checkpoint every 1st of the month, at 6pm, keep 3.

B. Create one checkpoint schedule.
Snap a checkpoint every day, at 5pm, keep 90.

C. Create three checkpoint schedules:
Snap a checkpoint every day, every even hour, keep 4.
Snap a checkpoint Mon-Sat, at 5pm, keep 6.
Snap a checkpoint on Sun, at 6pm, keep 80.

D. Create two checkpoint schedules:
Snap a checkpoint every day, every hour, keep 12.
Snap a checkpoint Mon, at 5pm, keep 12.