60/60 is pretty close to ideal. A little up or down from that is ok. Lots of other factors to influence that as well. Size of the plants, how much you need to dry, how big your drying area is, airflow, etc.... Drying is definitely the trickiest part. I still struggle with it and with knowing when it's dry enough to bag or jar.
How are you going to store and cure your dried product at the end? Are you planning on the old standby of Mason Jars? A lot of people here have converted to using Grove Bags. They are a special polymer that maintains humidity levels and keeps your stuff in prime condition. Long term storage is possible if you heat seal the bags too. I tend to put a hygrometer and Boveda packs in my Grove bags as I still don't trust myself to get it right. Easy reassurance with both of those in there.
As for when it's dry enough?
@Mañ'O'Green recommends using a wood moisture meter to tell when the buds are dry enough to get bagged up. I can't remember which one or which % he says is correct. I expect he will chime in later. (Pro grower there and very knowledgable. )