This is a cool idea. I have an old root cellar on my property also needing a bit of restoration and we'd also like to use it for cheese aging.
I think the differing temperature needs could be solved by observing for varying "microclimates" within the root cellar.
A bit of humidity and temperature monitoring in the "front" vs "back" of the cellar might help
answer the query. I think a partial divider of lime-washed
cob or similar non-structural, non-mold-prone building material could also help nurture the best conditions for different food stuffs. Vent pipe could be added to facilitate, and the area near it might also have a slightly different microclimate. Upper shelves vs lower shelves might also differ in the conditions they provide.
I'm going to set up monitoring in our cellar this week and see what we can find. Has anyone else already done this?
Melding permaculture, bau-biologie, holistic nutrition oncology and functional medicine since 1997. www.Nutritional-Solutions.net, www.facebook.com/CacheSoiltoTable, www.PoSHretreat.org.