Replace Cisco ASA-5505 with Fortigate 60B Firewall(repost)

We are seeking assistance with replacing a Cisco ASA-5505 with a Fortigate 60B. Our environment includes VLANs and a Cisco UCS540 PBX. Please see attached network diagram. We would like to work with someone familiar with Cisco and Fortinet products. We have the wan1 and wan2 interfaces configured but need help with the internal and vlan interfaces. We are also attaching a copy of our current ASA configuration.