Hi, I'll try to answer:

1. I recommend to spend bp mostly in chocos early on in the game, then tincs (or other stuff you might need).
2. Nothing, more or less.
3. Not that hard during daily up event.

Hi jarek

1. I don't really agree with Mobius. I think chocs are a waste of BP in the early levels as you level up fast anyway.
Better use them for tincs and sell them or trade tincs directly for equip. (E.g 25-30 tincs for a +18pvp piece)
2. Maybe 15-20g (?)
3. Upping is always hard^^ In my opinion its better to just buy the equip than upping it.
Then you don't have to rely on luck

In your case i would look for +18 pvp eq and +18 non pvp weapon. Later +20 non pvp weapon.

jarek wrote:

2. How much is a nonpvp +0 eq worth?

with 3 tincs you can trade the pieces!

Your guess is half right, you can craft both pvp and non pvp armour.
Pvp ones are listed as lv34 armour in the production specialist index (just to make an example, conqueror's and agitator's sets are both pvp). When we're talking about weapons, non pvp ones are sold by the Arms Dealer, semi-pvp ones by the Epic Weapon trader and, in order to get a pvp one, you have to craft it.
Ap weapons are stronger than non pvp and weaker than pvp, e.g. dragon string crossbow < iverian ender < magic crossbow.