Well, I would keep the Reavers because of them being
Fas Cav and the way that they can shoot on the move. It may be worth giving the BoEF to the spearmen as you said as it may help them stay alive a bit longer. The rest of the list is fine, though. Loremaster is really cool because of using every signature spell from the eight lores and the
BSB will do quite well as well. Bolt throwers are also good for providing covering fire or weakening units before yours engage. Oh, and which unit are your Loremaster and
BSB in? Hope this helps