I can´t wait man! Oh I put a 125x600mm silencer on my filter/fan output, seems to be doing a good job actually. The best soundtreatment is not that type of foam you´re using but wall insulation that you cover in cloth. I use that in my studio with great results. Density should be around 45kg/m3.
Anyway, your place is looking stellar!
Anyway, your place is looking stellar!