ZXYEL USG-200 TO FORTIGATE 101F :(

Morning guru's. I have a small customer with a Zxyel USG-200.  We are replacing with Fortigate 101F. Transparency:  I am not a FW guy - dabble I can do!   Anyone moved or copied configs from a Zyxel device to Fortigate successfully?  Looking for advice, best practices. Thanks in advance