Basement wine storage

mwfielder thought this was worth mentioning said

I’m buying an old home. Like 100+ years old. Found out that it has an old basement that has been closed off. It used to have a boiler, but that is no longer functional. Basement was never “finished out”. I do know it can collect water and has a sump pump in place, so humidity is an issue. It is rare to have a basement in Texas, but during an inspection yesterday (99 degrees outside) I noticed how cool it was in there. That got me to thinking about putting in some floor access and creating a wine cellar. It would take an undertaking to make this happen, but I don’t want to get halfway into a large project just to find out it isn’t feasible. Anyone have any experience in this? Advice or pitfalls?