Concerning the weapons:

Runtime DNA has a morphing bow and arrow freebie.

The DAZ Store just introduced a new Archery Pak, which includes two conforming quivers (one each for Mike and Vicky), two morphing arrows, and two morphing bows.

Robert Sharkey has a Fantasy Bow and Arrow here in Free Stuff, but it doesn't look like a close match for Legolas'.

I don't know what the knives look like, but you'll find plenty of free knife props here and at other sites.

The hair might be a challenge:

Take a look at Vairesh's Maiden Hair Supreme. It's for Victoria and Posette, but maybe it can be fitted to the male characters.