@mandragora @Norder @jay_s_uk @deckingman ,
Thank you guy's, these are all very informative and valued information. This give me a lot to consider, and decide upon which way to go with this.
I've added a photo below. Sorry, I should have done this in first post so you all had a better understanding.
@Norder I already have a second floor/partition, but this directly above the "built-in" soundproof chamber. I was planning on using this as my filament storage. When I say built-in, it's breeze blocks and plaster. I've already had to strap one side with an addition joist in the loft to take the extra weight of the TecSound soundproofing and soundproof plasterboard as this was unsupported and above a stair case (it did have small notched joist, but not enough for the addition weight).
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I'll have to take some temperature reading in the partition above. I suppose I could have it in an enclosure (in the above partition), and have a fan and duct in the timber above the door if needed. Then run cables to the paneldue, that will hopefully sit to the right of the door on the cable trunking.
Thank you again guy's for your time and advice.