Gym Script - Few Changes Reqd.

Its a gym management script we need just few changes in that. we are using this script : [login to view URL] Its a simple php codes script of usd 40 / we want work to completed in 3 days, Changes Reqd.: 1. To Add - Membership Id Manually or update from that [login to view URL] we want. 2. Discount entry payment option to be added in script if we want to add in invoice. 3. In invoice we want to add vat no., customer name, joining date, expiry date, payment method. referred by, course type, .demo : [login to view URL] 4. Dashboard - Active and Expiry Search Membership Options. | Active Members | Monthly Sales | Yearly Business | Inactive Members | ..\ Auto email to all members getting membership expired, and email to admin with members expired in this month, and business received this month. 5. Trainers drop down for PT Session. 6. Double entry payment delete button.. 7. we need easy to add and delete system in this script.