UPDATE
Had a hell of a time installing the 15cm intake fan as I didnt have a cutter attachment bigger enough for the hole, so as you can see I drilled a 10cm hole and then went around it with a 2 cm attachment. Then filed it down, damn what a pain....
The bad news it, its loud as fuck, I think even when it has insulated ducting attached to it the noise is still gonna be loud. Might have to downgrade to a quiter fan. Which made this whole exercise pointless.
One thing thats pissing me off is tape, the crap keeps peeling off the surface... not very trust worthy.
Pretty boring photo set I guess but meh....