Advanced Joomla - Scheduling Component Needed

Need senior/advanced joomla program to custom code a feature Need component to 1. Recognize date of purchase in virtuemart 2. Set a deadline for designer 7 days from them (excluding north amercian holiday) 3. Notify admin task needs to be assigned 4. Admin logs in and assigns to designer 5. designer accepts and notification goes back to admin 6. system reminds designer 5, 3, 1 day out if task not completed 7. 2 final sign off's of task (first by designer, then by admin) 8. once 2 signs off, task closed accept, they will be shown the client file (html file) ..need to pull this in from admin panel urgent: max budget: 40