the hardest I ever got was on proviron.. it acts fast too. did not bother my hair.
winny did mess up my hair worse than anything ever. but I did not run n2shampoo cause I assumed I would not have a problem, but i was wrong. and the hairloss came on fast where I could not notice it before it was too late. so bare that in mind since you need your hair for your shoot.
i think what you put together will be more than ample for your goals here. masteron and proviron are the same thing to me... but good quality masteron is just more expensive so I use proviron to harden up. (my massage therapist said she has never felt someone with as hard a muscles as me while I was on proviron)
running those DHT's could hurt your libido by tanking estrogen but really who cares in this case since you need to have a strong shoot. not sure about the tren, I don't get the same hardening on tren as I do on proviron/masteron .. and since that is your main goal i don't think the sides are worth it in this case.. good luck man, hope it works out for you whatever you decide to do .