Seems like a good plan. EQ doesn't aromatize too heavily into estrogen. Test will but you have aromasin so you should be good.
Aromasin at 10-12.5mg EOD is the standard dosage. For you - I would do aromasin 10-12.5mg ED. Start the AI on day 1 of your cycle and use it throughout your entire cycle and PCT.
I doubt you will need the letro but it's always a good thing to have on hand.