The chest/legs/head cost 12000 honor and 250 arena points i belive.

I can bring in about 8000-10000 if i do wintergrasp and complete the 3 boxing friendly dailies.

Destroy 3 sieg vehicles.
Kill 20 players.
Win wintergrasp.

If i do the daily bg and win on the first atempt its about 10-12k honor each day for 1 hour play.

Its FAR more effective to do it over a week then hardcore grinding for 2 days.