How to properly set up the chest shop system?

[Salad_in]

I was thinking about making shop and/or a PvP arena what dispenses free gear to use while fighting and I figures that the shop system would be the perfect thing to use. A dispenser and pressure plate set up might be easier to make but someone might end up with more thing than they needed so I was hoping if someone could explain how to set up the signs, what the lowest buying price is for items is and so on.
Any and all help will be much appreciated, thanks.

[Sokonit]

Talk to lala? (lalalalalalalalalalalalalalalalalalalalalalalalalalalalala). If you need help, I am just a skype call away...

[__Laurens__]

hey sorry for my late reply. Don't know if you've worked it out already.

Shop Sign:
First lign [Item you want to sell/will buy]
Second lign Buy x for .....
Third lign Sell y for .....
If you do it correctly the fourth line will display your username.

(The ...... can be replaced with any number of i = iron ingot. e=emerald, d=diamond)
Note: some items have a long name and don't fit on the first line of the sign: [Diamond Pickaxe] doesn't fit, so you would need to use the item code: 278. Item codes can be found here: http://www.minecraftinfo.com/IDList.htm
You can sell enchanted items with this system, though you need a chest for every kind of enchanted item.
You can't sell enchanted books trough this system.

Example
[Diamonnd Sword]
Buy 1 for 3d
Sell 1 for 2d
(And here automatically will stand) __Laurens__

[278] (278 is the item code for diamond pickaxe)
Buy 1 for 4d
Sell 1 for 3d

If you want two single chests next to each other you can put a trapped chest and normal chest next to each other.

Good luck!
Laurens

[Salad_in]

No I haven't done any looking around yet, Been a little busy with other things.
Thanks for posting these instructions Laurens. Hopefully it'll help with any upcoming things I have planned.

[__Laurens__]

Btw.
I thought the system worked for enchanted items, but unfortunately it doesn't . I should have noticed earlier, because my shop consists of them .

[Salad_in]

No worries, Though thanks for the heads up, I'll keep it in mind.

[FunkyRaspberry]

nice answer, Laurens I was curious about this as well and the answers you provided were very helpful