bearded dragon

Selling my Bearded Dragon (Ron) and Terrarium with sliding acrylic windows (one has a crack.. easily replaced or just turn the tank around to expose the perfectly fine window). Terrarium also has built in vents for airflow that can be opened/closed and a socket for a heat and UVB bulb. Stand is...

So I'm thinking about installing an outside enclosure for my beardie. I can install a heat lamp to raise the basking area temps as high as I need it to be, but my research says the cool side needs to be around the mids 70s minimum. The actual climate is cooler. The temperature outside is...