I would recommend pinning the test E and tren A EOD
.5ml tren A and 1-2ml of test E each shot.
draw the test into the needle first, then the tren (I always draw with an 18g and swap it out with a 23 so I pin with a fresh/perfectly sharp needle).
in my experience, when you inject the tren first (by drawing it last), you are less likely to get the tren cough.. the tren cough is a terrible, terrible feeling.
1.25mg letro EOD should do you fine, assuming it's legit quality..
standard nolva/clomid pct should do the trick, though I only used clomid once back when I cycled.