I figured I'd do a Magos and an Archmagos, utilizing the various options in the kit - one built bog standard, and the other with the alternate head and weapon options. I also swapped out the servo-skull with the slightly more ornate one from the Scions kit. I experimented with the arms a bit, but the design is such that it would require some serious cutting and greenstuff to change the posing.
I'm thinking I'll do the basic Magos with red robes and white detailing, and the Archmagos with the reversed color scheme to help differentiate them a bit further. Quite looking forward to getting stuck in, this sculpt is absolutely fantastic!