TL-15 would be good, TL-30 or better would be even better. Would prefer at least 45 inches Interior Height. Fire rating also required, at least UL 1700 F for one hour.
Seems likely professional safe movers would be required for extraction and installation - we could work that out.
I'm aware that these are not cheap - but I'd guess businesses or families have safes they are no longer using and would like gone.