configure 8 Juniper access switches

hi i need help in set up and configure this juniper switch's in that number 

1.  Setup and configure Eight Juniper access switches to work in one virtual chassis cluster, and connect them to a juniper Core switch with dual route engines interfaces. 
2. The chasse cluster design should include redundancy at the hardware level by connecting two access switches on each rack together  
3. Setup three new VLANS in both juniper Core and access  switches to be used to provide a connectivity with the pre-production environment hosted in X environment  
4.  Configure the Core switch to provide isolated connectivity to the Y Environment hosted in the X Environment

    

Item

1. 8-EX4550 Top Of Rack Switch  

2. 1-EX8208 Core Switch