Level 40 Bracket Twinking.

[ImDingDing]

Think the gc weapon paired with any gc item for set bonus is worth it? Also defense counts for nothing in 30s/40s?

yep, you can use the gc weapon plus a hand/head/boot gc gear (the melding gear for body is better).
no, defense dont count in PvP at all. the only diff in 50s is molare. in 30/40 nothing.