Guild Wars 2

I just finished crafting my ligth of dwayna but was wondering wich stats should i put on it as an elementalist? I tend to change alot between build so im not sure if i should just go with celestial?

If i do a custom offer on an items than change my mind before ive bought it and remove this order do I lose gold?

And what kind of armour I should use in general(PvE , WvW

Thats migth be a noob question but how can sigil of energy/battle could be effective if a ele cant have 2 weapons to switch between

What would be a good D/D build now

Wich Sigil/rune to take?

I aiming mostly for pvp

I need a solo pve builds for map completetion. Any good one?

My ele just reach lvl 80 and I need to know what build should i use for

1.PVE (Mostly dungeon)
2.WvW

I dont really care if its Staff,Dagger …etc Id like to know what type of armor to use to (Except celestial cause i cant afford that :p)