IMHO the first cycle should use the lightest compounds and ideally ones that are estrogen side effect free such as Anavar, Primobolan and Oral Turinabol.
Most guys dont know what they are getting themselves into when they start a cycle and when the estrogen side effects hit BAM! weight gain, water retention, gyno starts etc.
And their is nothing wrong with an oral only cycle, some make remarkable gains off of this alone depends what the person is comfortable with injects or orals. This is just what ive learnt.
From what ive read your going with 500mg a week of T which is standard most people do this first time round. Letro is a good AI although very strong. Id run it throughout at a small dose to keep your T -> E conversion to a minimum.