SOLVED
I agree with Josh here - I wouldn't even use an EP for this. Especially since all three of your casts are now being done within a single smart campaign in a single program (vs. three separate programs in an EP). Which also clouds reportability and content attribution/success.
If you were to do this as three separate programs within the EP, I would do it as follows. Assuming that your defined cadence is setup as "Every week on Monday @ 12:05am", the three "send email" smart campaigns would look like this (sent over the course of three weeks):
Program 1:
This will go out on Monday at 12:05am
Program 2:
This will go out on Thursday at 1:00pm
Program 3:
No wait step is necessary here since it will be sent during the week 3 cadence at 12:05am on Monday
Now if this needs a more aggressive series of casts - where the Thursday email is sent the same week as the Monday email, you can potentially combine Program 1 and Program 2 into a single program (but still deal with the reporting/attribution I mentioned initially - which may not be a big deal since the second program/email is just a teaser):
Program 1:
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