You want at least RAIDZ2. With the 4TB drives as well, but they are less a risk being smaller in both size and Number: if they will be part of the same pool as the other drives, you should go RAIDZ2.
You don’t have enough RAM for L2ARC (at least 64 GB) and you likely don’t need a SLOG.
Before creating the pool, run the following script to all disks for a few days, then run a long test.
Remove it and check, seems strange but it’s not impossible.
