@Aprone, yes, I was thinking of flint tipped arrows and hunting bows just for hunting and gaining firs and other products from hunted animals, particularly if firs are to play more of a part in the game, not to mention perhaps shooting game as another food source.
As to sand, well personally I like self sufficiency, however imho it's better for the economy and for games if players could! always make themselves self sufficient but as you said earlier regarding arrows choose to interact with others to short cut lines of production, particularly when it's for resources you might need lots of, quite aside from the fact that single player versions of the game will require at least a degree of self sufficinecy. Also I confess lack of sand I just find a bit weerd given all the mining you do, hell, there is limestone and salt, why not sandstone? and even if there aren't any huge tyle sized lakes, there has to be some! water somewhere or otherwise you'd be in a desert which is a sand overdose .
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)