The sword and shield can't be too difficult to simply make yourself. The specifications for both of those are all in the Rulebook, so just check those out. I'm going to make my short and long swords for the next event and customize them myself with green duct-tape. If you want your sword more customize as far as the actual design of the sword itself, I'd ask a more professional weapon-builder on what to do.
As for the shield, I don't know if this passes the rulebook's qualifications (I've never really looked at them, for I wouldn't really consider using a shield myself), but this video's pretty informative and relatively cool:
http://www.youtube.com/watch?v=B9ixHvXu ... re=related I'd check the rulebook and/or a Marshal before building a shield from this video, though.
As for the viking-ish outfit, it wouldn't be too difficult to make. Just go to some fabric store, get a few yards of thick and possibly furry fabric and just make yourself a simple tunic thing. It's essentially like making a T-shirt, so if you base your outfit off of that, it's really not hard at all. Heck, we made the shirt I wore at the last SoMN event by pretty much looking at and copying a long sleeved T-shirt and modifying some of the lengths. It's also probably cheaper to make your own than to buy something from someone or somewhere. Also, I assume you'll be playing a barbarian, so even if it ends up looking a bit cruddy, you could say it's in character. Them barbarians aren't exactly perfectionists when it comes to clothes, you know.
For the headdress: You're on your own for that one. I got nothin'.
Also, am I correct in thinking you were one of the new NPCs at the August SoMN event?