Not bad. Okay, so unless there's any objection, I'd like to have 43 plus Arne (see # 1) sent out for the spring campaign. A few steps here that I'd suggest:
1) Interview the warriors, and pick out two good candidates for seconds-in-command. One would be Arne's second for the campaign, and another would be in charge of home defense (at least for this particular mission). The home defense guy would be in charge of, well, home defenses as well as training some of the thralls the basics of combat. He'd answer only to Valka, Arne and the priestess.
2) All of the trained warriors would have the task of improving the combat skills of the 29 kinsmen prior to the spring. I'm thinking that training them first in the spear would be good, since it's a fairly straightforward weapon to learn. For closer range, either the hand axe or dagger.
3) So, we have 20 sets of war gear, and 43 soldiers (Arne already has his own stuff). That means that we'll need another 23 sets of gear. I have no idea what an average Nord soldier's set of gear consists of (or how much it costs). Also, are we all expected to have horses?