[HELP] About Event

Hi guys,
I need some help 4 my project.
This is how it came :
In order to access a stronger class ( Ex: Swordman -> Swordmaster), my character must meet these conditions first :
- Be at least lv50.
- Have an Hallow ( For the Swordman is the Hero Crest) in inventory.
- Pay 5000 G.
An the promotion ceremony will be held by a priest at a city ( she is an event, of course).
How can I have the event tobe checked if the character has met the conditions or not?
If :
    A Swordman :
            +lv 50+
            +a Knight Crest in inventory
            +5000 G
else :
            + then be gone !
end case:
       class : Swordman -> class : Swordmaster.

Um. .... I hope you understand my decriptions ?

Hi guys,
I need some help 4 my project.
This is how it came :
In order to access a stronger class ( Ex: Swordman -> Swordmaster), my character must meet these conditions first :
- Be at least lv50.
- Have an Hallow ( For the Swordman is the Hero Crest) in inventory.
- Pay 5000 G.
An the promotion ceremony will be held by a priest at a city ( she is an event, of course).
How can I have the event tobe checked if the character has met the conditions or not?
If :
    A Swordman :
            +lv 50+
            +a Knight Crest in inventory
            +5000 G
else :
            + then be gone !
end case:
       class : Swordman -> class : Swordmaster.

Um. .... I hope you understand my decriptions ?

P/S : I'm using RMXP.

Conditional Branch: Gold 5000 or more
    Conditional Branch: Item [Knight Crest] in Inventory
        Control Variables [XXX: Hero Level] = [<hero_to_be_promoted>]'s Level (found under Control Variables: Actor)
        Conditional Branch: Variable [XXX: Hero Level] >= 50
             <Promote the hero event>
        END
    END
END

Hope that helps.

Oh thx, I will try and will be back later