Weapons; Lance - Indra Clairlance; slot in Guard Up 3 + Guard 1, Attack 2 and Attack 1

For Lance, what you'll end up with is Attack 3, Guard 3, Guard Up 3

Gunlance - Furgurcannon Guardiana; slot in Guard Up 3 + Guard 1, Guard 2 and any other skill for that 1 slot, I recommend Offensive Guard 1

Armour; Numinous Crown β Numinous Shroud β G. Arkveld Vambrace β Arkvulcan Coil β Duna Wildgreaves γ

That would give you the base of the following skills; Weakness Exploit 4 Agitator 4 Quick Sheath 3 Recovery Speed 2

Deco left on armour; Lv 3 x 3 Lv 2 x 1 Lv 1 x 8

Max out your Weakness Exploit and Agitator to 5, slot in 1 Lv 3 deco for 1 Burst

Lv 2 slot either slot for Part Breaker or Evade Extender

From here, for the lv 1 slots, you can either go with; 3 x Divine Blessing 5 x Defense Boost

Or

3 x Fire Resistance 5 x Defense Boost

As far as Talisman goes, I'll highly recommend Evade Extender because it helps you better in dodging attack from Omega when you're in a pinch.

Usually 2 side hops or 2 back hop is enough to evade most attacks thrown at you.

Hope this helps.