If you can control the RH properly, this is fine.
e.g. you can take an wine cooler and convert it into a drying/curing thing akin to the Cannatrol device.
I'd suggest avoiding the ones with a compressor. You want the "thermostatic" cooling element, not a condensor type. I believe it is more stable temp and less moisture invovled.
Maybe one 200g boveda pack (or whatever the super size is) or maybe 2 67g at top and 1 at bottom (humidity tends to be higher at lower spots). Think 67g is good for 1/2to 1lbs. I use three in 5-gallon cure buckets for 2-3lbs, and that is overkill for upto at least 1-year term and likely longer as my boveda packs are nowhere near done at that time.
Make sure it can get to the temperature you want. They don't all have the same temperature range and you don't want to skimp on this.
so, pay through the nose for a cannatrol device or make one for 1/3rd to 1/2 that cost. It's a no-brainer.'
Or, buy one or more 5-gallon buckets, boveda packs and a gamma seal lid. Each will hold 2-3-4 lbs of bud. When i store multiple strains in one i use those reusable mesh vege/fruit bags for picking up that stuff from supermarket, but it does redcue holding capacity clsoer to 2-3lbs but ifit's just free floatign bud filled to 90%, it's closer to 4lbs capacity with dense nugs. fill 2/3rds for intial 2-3 weeks of curing until fully at equilibrium with environment.
Often a basement will keep you below 70F even in the summer - YMMV by region. Some volatile terps evaporate at mid-70s F (their bioling point). that stuff isn't going to last long no matter what.