I don't know... you'd need to maintain an over pressure in the living quarters and tiny leaks won't be much of an issue. Lift can be provided by hydrogen blimps, until you get to a balmy 20 C (70 F).

That would help both bleeding off heat and helping with maintaining over-pressure in the living quarters.

Corrosion resistance will be a challenge but not impossible, there are many plastics which will withstand sulfuric acid.