OK... So I thought I should summarise the build now that my veg and flower boxes are "complete" (when I say complete I mean that I don’t have anything major to do anymore, just a few tweaks hear and there)
VEG
Box: 2' Wide x 2' Deep x 4' High (Flat White)
Lights: 1 x 130w 11,000k CFL + 1 x 100w 6,400k CFL
Ventilation: 1 x 5" Spectrum inline fan
FLOWER
Box: 4' Wide x 2' Deep x 6' Tall (Mylar)
Lights: 1 x 250w HPS + 2 x 100w 2,700k CFLs
Ventilation: 1 x 6" inline EZI fan + cool tube + small 8" wall fan.
Still to add: Odor sok and potentially another 6" inline EZI fan.
Thanks to everyone that helped me with this build. It has been a massive help. Feel free to stop buy and check out my first indoor grow with good seeds.
https://www.rollitup.org/grow-journals/111560-g13-labs-northern-lights-x.html