Migration of EHP7 to Simple Finance on-premise 1503 SPS 1505

Hi,

Now two things we have to do:-

1. First One of our system is at ECC 6.0 EHP7 SP08 HANA SPS09 Rev. 97, and we are planning to upgrade/migrate to Simple Finance on-Premise      1503 SPS 1505 or 1508.

2. Migrating SAP application from Linux host to Windows hosts and HANA DB will remain on Linux host.

Now, a). Can I directly migrate above systems using system copy procedure onto Window system using backup of ECC 6.0 EHP7 systems.

b). Or first I upgrade/migrate EHP7 to S/4 HANA on Linux host and then migrate S/4 HANA using systems copy to Windows host.

Please advice.

Atul