Anadrol and Tren are both very powerful hormones.
Both cause gyno not related to aromatization so if taken with Test make SURE you keep E down.
Letro might not be a bad call since it is rumored to have anti-prog properties I believe.
Brook has used it with success in his cycles.
Tren does cause some uncomfortable sides in some so running the Enanthate Ester might not be a wise choice as you don't know how your body is going to react to it.
Imo this cycle and drug choice seems like one for a more advanced AAS user. Some disagree but thats my personal opinion.
I see nothing wrong with 500mg/week test for 10-12 weeks, if you saw fit you can throw in an oral such as Anadrol (I'd mix with winny as there is a synergy between the two) or just Dbol.
My next bulker will be Test/Dbol with test in higher dosages.
Your call, but I do believe you need to do plenty more research before tackling those 3 drugs just for sides prevention sake.
The stickies at on this forum are great. Give those a read and then search a bit.