Train 2 non-consecutive days per week to begin with. You could train on a Monday and a Thursday or something similar. Continue this for a period of 6 Weeks.
A great way to progress it would be to train 2 Days per Week for 6 Weeks and then increase to 4 Days per Week for the next 6 Weeks. Instead of training Monday and Thursday you could train Monday, Tuesday and then Thursday, Friday with the weekends as recovery. This would give you 12 weeks of training progressively overloading your body in preparation for some more advanced skill training.
As this is an introductory level program it is designed to ease you into your Handstand Training and give your joints plenty of time to adjust to the rigors of being upside down.