Official Trade Prices? (.Net)

I'd very much appreciate it if there was a thread on currency for .net like;

Iron to Grass
Iron to Gold
Iron to Diamonds
Iron to Eggs
--------------
Grass to Gold
Grass to Iron
Grass to Diamonds
Grass to Eggs
--------------
Gold to Grass
Gold to Iron
Gold to Diamonds
Gold to Eggs
--------------
Diamonds to Grass
Diamonds to Iron
Diamonds to Gold
Diamonds to Eggs

Considering, those are the 4 main currency trading items on Skyblock.net, for trading threads on her, there should be a "AVERAGE" thread.

Like, on the thread it would say:

"So I made this thread here to tell you the official average prices of most commonly traded items, kind of like the Runescape Grand Exchange program how there is a Street Price and an Official price.
So here it goes.

____(<----Item) is about:

Street Price: (A price for people on the server who have actually read this thread)
Villager Price: (The villager price)
Forum Trading Price: (A price for people with trading threads)"

But it should be an average thing... Like not an exact price but on an average. Like, every month or so, the average is changed. A monthly census.

Heres another example: (EXAMPLE!!! NOT REAL)

Per Dragon Egg is about:

Street Price: Min: 30 Grass and Max: 40 Grass (45 grass average)
Villager Price: N/A
Forum Trading Price: Min: 50 Grass and Max 64 Grass (57 grass average)


Tell me what you guys think. This could solve a lot of problems on trading. Its an AVERAGE price that ranges from a min price to a max price and because of that, it couldn't actually solve all the problems but most. Not everyone may listen to it either because its an average price. Though, it doesn't have to be exactly like that... The examples were more of just a preview simple style.