I went for the Avid FR-5 levers as was worried about the small dial being easy to break on the SD7.
Cool, Odyssey Linear SLS brake cables work very well if you’re planning on foot jam whips. If not, Shimano SP51 outer cables are meant to give a solid feeling brake:
https://www.tartybikes.co.uk/disc_brake_spares/shimano_sp51_outer_cable/c110p11637.html?pos=3991&search_params=YTo4OntzOjg6ImluX3N0b2NrIjtpOjA7czoxMjoiY2F0ZWdvcnlfaWRzIjthOjE6e2k6MDtzOjM6IjU5NyI7fXM6MTY6ImNhdGVnb3J5X3JlY3Vyc2UiO2I6MTtzOjg6ImtleXdvcmRzIjtzOjA6IiI7czo5OiJicmFuZF9pZHMiO047czo0OiJtb2RlIjtzOjM6ImFsbCI7czo0OiJzb3J0IjtzOjk6InByaWNlX2FzYyI7czoxMDoiY291bnRyeV9pZCI7czoxOiIxIjt9
TMS is a French brand available through FXN, the Silex is steel, I’ve always loved the feel of steel frames coming from a bmx background: